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<a href="posix__mq__handle_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow-IPC: Core</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright 2023 Akamai Technologies, Inc.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Licensed under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * &quot;License&quot;); you may not use this file except in</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * compliance with the License.  You may obtain a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * of the License at</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *   https://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * Unless required by applicable law or agreed to in</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * writing, software distributed under the License is</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * See the License for the specific language governing</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * permissions and limitations under the License. */</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"></span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"></span><span class="preprocessor">#include &quot;<a class="code" href="transport__fwd_8hpp.html">ipc/transport/transport_fwd.hpp</a>&quot;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#include &quot;<a class="code" href="posix__mq__handle_8hpp.html">ipc/transport/posix_mq_handle.hpp</a>&quot;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &quot;<a class="code" href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">ipc/transport/error.hpp</a>&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &lt;flow/error/error.hpp&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#include &lt;boost/chrono/floor.hpp&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="preprocessor">#include &lt;boost/array.hpp&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceipc_1_1transport.html">ipc::transport</a></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span>{</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="keyword">namespace</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>{</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"></span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment">/**</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"> * File-local helper: takes Shared_name; returns name suitable for `mq_open()` and buddies.</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment"> * @param name</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment"> *        Shared_name.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="comment"> * @return See above.</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment"> */</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>std::string shared_name_to_mq_name(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a33de1c256addb3964b839dc2dd407d24">Shared_name</a>&amp; name);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>}; <span class="comment">// namespace (anon)</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment">// Initializers.</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a33de1c256addb3964b839dc2dd407d24">Shared_name</a> <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a1ba246862d7484019476e9b60426833e">Posix_mq_handle::S_RESOURCE_TYPE_ID</a> = <a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#a48f20b7b54490aa10dc64081d34c55b2">Shared_name::ct</a>(<span class="stringliteral">&quot;posixQ&quot;</span>);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">// Implementations.</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">   48</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>() :</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>  m_interrupting_snd(false), <span class="comment">// (Not algorithmically needed as of this writing, but avoid some sanitizer complaints.)</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>  m_interrupting_rcv(false), <span class="comment">// (Ditto.  E.g., swap() through clang&#39;s UBSAN =&gt; complains it&#39;s uninitialized.)</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>  m_interrupter_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>  m_interrupt_detector_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>  m_interrupter_rcv(m_nb_task_engine),</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>  m_interrupt_detector_rcv(m_nb_task_engine)</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>{</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>  <span class="comment">// Done.</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>}</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mode_tag&gt;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#af5471cf5d7a11cf725e291fad962a636">   60</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>(Mode_tag, flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name_arg,</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>                                 <span class="keywordtype">size_t</span> max_n_msg, <span class="keywordtype">size_t</span> max_msg_sz,</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>                                 <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#a1b398ae730d1e6040687cb2397115152">util::Permissions</a>&amp; perms, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>  flow::log::Log_context(logger_ptr, <a class="code hl_enumeration" href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">Log_component</a>::S_TRANSPORT),</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>  m_absolute_name(absolute_name_arg),</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>  m_interrupting_snd(false),</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>  m_interrupting_rcv(false),</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>  m_interrupter_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>  m_interrupt_detector_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>  m_interrupter_rcv(m_nb_task_engine),</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>  m_interrupt_detector_rcv(m_nb_task_engine)</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>{</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceipc_1_1util.html#abbba79fcaee378f433e7ce3093e5c435">util::set_resource_permissions</a>;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>  <span class="keyword">using </span>flow::error::Runtime_error;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>  <span class="keyword">using </span>boost::io::ios_all_saver;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>  using ::mq_open;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>  using ::mq_close;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>  using ::mq_attr;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>  <span class="comment">// using ::O_RDWR; // A macro apparently.</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>  <span class="comment">// using ::O_CREAT; // A macro apparently.</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>  <span class="comment">// using ::O_EXCL; // A macro apparently.</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>  assert(max_n_msg &gt;= 1);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>  assert(max_msg_sz &gt;= 1);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>  <span class="keyword">static_assert</span>(std::is_same_v&lt;Mode_tag, util::Create_only&gt; || std::is_same_v&lt;Mode_tag, util::Open_or_create&gt;,</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>                <span class="stringliteral">&quot;Can only delegate to this ctor with Mode_tag = Create_only or Open_or_create.&quot;</span>);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>  <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> CREATE_ONLY_ELSE_MAYBE = std::is_same_v&lt;Mode_tag, util::Create_only&gt;;</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>  <span class="keyword">constexpr</span> <span class="keywordtype">char</span> <span class="keyword">const</span> * MODE_STR = CREATE_ONLY_ELSE_MAYBE ? <span class="stringliteral">&quot;create-only&quot;</span> : <span class="stringliteral">&quot;open-or-create&quot;</span>;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>  {</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    ios_all_saver saver(*(get_logger()-&gt;this_thread_ostream())); <span class="comment">// Revert std::oct/etc. soon.</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>    FLOW_LOG_TRACE</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>      (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Constructing MQ handle to MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] in &quot;</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; MODE_STR &lt;&lt; <span class="stringliteral">&quot;] mode; max msg size [&quot;</span> &lt;&lt; max_msg_sz &lt;&lt; <span class="stringliteral">&quot;] x [&quot;</span> &lt;&lt; max_n_msg &lt;&lt; <span class="stringliteral">&quot;] msgs; &quot;</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>       <span class="stringliteral">&quot;perms = [&quot;</span> &lt;&lt; std::setfill(<span class="charliteral">&#39;0&#39;</span>) &lt;&lt; std::setw(4) &lt;&lt; std::oct &lt;&lt; perms.get_permissions() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>  }</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>  <span class="comment">// Get pipe stuff out of the way, as it does not need m_mq.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>  <span class="keyword">auto</span> sys_err_code = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ac2cf0213ceaa0a8c621ee2c02c6fbec6">pipe_setup</a>();</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>  <span class="keywordflow">if</span> (!sys_err_code)</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>  {</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>    <span class="comment">/* Naively: Use mq_open() to both create-or-open/exclusively-create and to set mode `perms`.</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment">     * In reality though there are two subtleties that make it tougher than that.  Fortunately this has been</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment">     * adjudicated out there, and internal boost.interprocess code very nicely confirms that adjudication/sets</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment">     * a sufficiently-authoritative precedent.</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment">     *</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment">     * Subtlety 1 is that mq_open(), like all POSIX/Linux ::open()-y calls, doesn&#39;t listen to `perms` verbatim</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment">     * but rather makes it subject to the process umask.  The proper way (citation omitted) to deal with it is</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment">     * to follow it up with ::[f]chmod() or equivalent, with the resource descriptor if available (or path if not).</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">     * (We do have the descriptor -- m_mq -- and we have a util::set_resource_permissions() overload for this.)</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">     *</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment">     * Subtlety 2 is that we should only do that last thing if, indeed, we are *creating* the resource (MQ);</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment">     * if CREATE_ONLY_ELSE_MAYBE==false, and it already exists, then we mustn&#39;t do any such thing; we&#39;ve succeeded.</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment">     * Sadly there&#39;s no (atomic/direct) way to find out whether mq_open() (in ==false case) did in fact create</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment">     * the thing.  Therefore, we have to do things in a kludgy way -- that is, nevertheless, reasonable in practice</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">     * and indeed is validated by bipc&#39;s use of it internally (search headers for `case ipcdetail::DoOpenOrCreate:`</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment">     * followed by shm_open(), fchmod(), etc.).  We explain it here for peace of mind.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment">     *</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment">     * In the CREATE_ONLY_ELSE_MAYBE=true case, we can just do what we&#39;d do anyway -- shm_open() in create-only</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment">     * mode; then set_resource_permissions(); and that&#39;s that.  Otherwise:</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment">     *</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment">     * We can no longer use the built-in atomic create-or-open mode (O_CREAT sans O_EXCL).  Instead, we logically</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment">     * split it into two parts:try to create-only (O_CREAT|O_EXCL); if it succeeds, done (can</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment">     * set_resource_permissions()); if it fails with file-exists error, then mq_open() again, this time in open-only</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment">     * mode (and no need for set_resource_permissions()).  Great!  The problem, of course, is that this no longer uses a</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment">     * guaranteed-atomic open-or-create OS-call semantic.  Namely it means set_resource_permissions() could fail due to</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment">     * file-not-found, because during the non-atomic gap the MQ got removed by someone.  Then we spin-lock (in a way)</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment">     * through it: just try the whole procedure again.  Sooner or later -- assuming no other errors of course --</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">     * either the first mq_open() will succeed, or it&#39;ll &quot;fail&quot; with file-exists, yet the 2nd mq_open() will succeed.</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment">     * Pegging processor is not a serious concern in this context. */</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>    <span class="keyword">const</span> <span class="keyword">auto</span> mq_name = shared_name_to_mq_name(<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>());</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>    <span class="keyword">const</span> <span class="keyword">auto</span> do_mq_open_func = [&amp;](<span class="keywordtype">bool</span> create_else_open) -&gt; <span class="keywordtype">bool</span> <span class="comment">// Just a helper.</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>    {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>      <span class="comment">/* Note: O_NONBLOCK is something we are forced to set/unset depending on the transmission API being called.</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment">       * So just don&#39;t worry about it here. */</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>      ::mqd_t raw;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>      <span class="keywordflow">if</span> (create_else_open)</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>      {</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>        mq_attr attr;</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>        attr.mq_maxmsg = max_n_msg;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>        attr.mq_msgsize = max_msg_sz;</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span> </div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>        raw = mq_open(mq_name.c_str(),</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>                      O_RDWR | O_CREAT | O_EXCL, <span class="comment">// Create-only always: per above.  Can&#39;t use create-or-open.</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>                      perms.get_permissions(),</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>                      &amp;attr);</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>      }</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>      <span class="keywordflow">else</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>      {</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>        raw = mq_open(mq_name.c_str(), O_RDWR);</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>      }</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>      <span class="keywordflow">if</span> (raw != -1)</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>      {</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>        <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>(raw);</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>      }</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span> </div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>      <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>      {</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>        sys_err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>      }</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>      <span class="comment">// else</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>      <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    }; <span class="comment">// do_mq_open_func =</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span> </div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>    <span class="keywordflow">if</span> (CREATE_ONLY_ELSE_MAYBE)</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>    {</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>      <span class="comment">// Simple case.</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>      <span class="keywordflow">if</span> (do_mq_open_func(<span class="keyword">true</span>))</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>      {</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>        <a class="code hl_function" href="namespaceipc_1_1util.html#abbba79fcaee378f433e7ce3093e5c435">set_resource_permissions</a>(get_logger(), <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>, perms, &amp;sys_err_code);</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span>      }</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>      <span class="comment">// sys_err_code is either success or failure.  Fall through.</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>    }</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>    <span class="keywordflow">else</span> <span class="comment">// if (!CREATE_ONLY_ELSE_MAYBE)</span></div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>    {</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>      <span class="comment">// Complicated case.</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span> </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>      <span class="keywordtype">bool</span> success = <span class="keyword">false</span>; <span class="comment">// While this remains false, sys_err_code indicates whether it&#39;s false b/c of fatal error.</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>      <span class="keywordflow">do</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>      {</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>        <span class="keywordflow">if</span> (do_mq_open_func(<span class="keyword">true</span>))</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>        {</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>          <span class="comment">// Created!  Only situation where we must indeed set_resource_permissions().</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>          <a class="code hl_function" href="namespaceipc_1_1util.html#abbba79fcaee378f433e7ce3093e5c435">set_resource_permissions</a>(get_logger(), <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>, perms, &amp;sys_err_code);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>          success = !sys_err_code;</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>          <span class="keywordflow">continue</span>; <span class="comment">// `break`, really.  One of success or sys_err_code is true (latter &lt;= s_r_p() failed).</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>        }</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>        <span class="comment">// else if (!do_mq_open_func(true)) // I.e., it failed for some reason.</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>        <span class="keywordflow">if</span> (sys_err_code != boost::system::errc::file_exists)</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>        {</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>          <span class="comment">// Real error.  GTFO.</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>          <span class="keywordflow">continue</span>; <span class="comment">// `break;`, really (sys_err_code==true).</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>        }</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>        <span class="comment">// else if (file_exists): Create failed, because it already exists.  Open the existing guy!</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>        <span class="keywordflow">if</span> (do_mq_open_func(<span class="keyword">false</span>))</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>        {</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>          <span class="comment">// Opened!</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>          success = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>          <span class="keywordflow">continue</span>; <span class="comment">// `break;`, really (success==true).</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>        }</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>        <span class="comment">// else if (!do_mq_open_func(false)) // I.e., it failed for some reason.</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>        <span class="keywordflow">if</span> (sys_err_code != boost::system::errc::no_such_file_or_directory)</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>        {</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>          <span class="comment">// Real error.  GTFO.</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>          <span class="keywordflow">continue</span>; <span class="comment">// `break;`, really (sys_err_code==true).</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>        }</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>        <span class="comment">// else if (no_such_file_or_directory): Open failed, because MQ *just* got unlinked.  Try again!</span></div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span> </div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>        <span class="comment">// This is fun and rare enough to warrant an INFO message.</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>        {</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>          ios_all_saver saver(*(get_logger()-&gt;this_thread_ostream())); <span class="comment">// Revert std::oct/etc. soon.</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>          FLOW_LOG_INFO</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>            (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Create-or-open algorithm encountered the rare concurrency: &quot;</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>             <span class="stringliteral">&quot;MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] existed during the create-only mq_open() but disappeared &quot;</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>             <span class="stringliteral">&quot;before we were able to complete open-only mq_open().  Retrying in spin-lock fashion.  &quot;</span></div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>             <span class="stringliteral">&quot;Details: max msg size [&quot;</span> &lt;&lt; max_msg_sz &lt;&lt; <span class="stringliteral">&quot;] x [&quot;</span> &lt;&lt; max_n_msg &lt;&lt; <span class="stringliteral">&quot;] msgs; &quot;</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>             <span class="stringliteral">&quot;perms = [&quot;</span> &lt;&lt; std::setfill(<span class="charliteral">&#39;0&#39;</span>) &lt;&lt; std::setw(4) &lt;&lt; std::oct &lt;&lt; perms.get_permissions() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>        }</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span> </div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>        sys_err_code.clear(); <span class="comment">// success remains false, and that wasn&#39;t a fatal error, so ensure loop continues.</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>      }</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>      <span class="keywordflow">while</span> ((!success) &amp;&amp; (!sys_err_code));</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span> </div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>      <span class="comment">// Now just encode success-or-not entirely in sys_err_code&#39;s truthiness.</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>      <span class="keywordflow">if</span> (success)</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>      {</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>        sys_err_code.clear();</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>      }</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>      <span class="comment">// else { sys_err_code is the reason loop exited already. }</span></div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span> </div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>      <span class="comment">// Now fall through.</span></div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>    } <span class="comment">// else if (!CREATE_ONLY_ELSE_MAYBE)</span></div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span> </div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>    <span class="comment">// We never use blocking transmission -- always using *wait_*able() so that interrupt_*() works.  Non-blocking 4eva.</span></div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>    <span class="keywordflow">if</span> ((!sys_err_code) &amp;&amp; (!<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab68150c87931f6eb32d0908049e4dac6">set_non_blocking</a>(<span class="keyword">true</span>, &amp;sys_err_code)))</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span>    {</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>      assert(sys_err_code);</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span> </div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>      <span class="comment">// Clean up.</span></div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span> </div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>      <span class="comment">// Disregard any error.  In Linux, by the way, only EBADF is possible apparently; should be fine.</span></div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>      mq_close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>    }</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span> </div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>    <span class="keywordflow">if</span> (!sys_err_code)</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    {</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>      sys_err_code = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a47378b13e9dce85a1e1021896c98c3cd">epoll_setup</a>(); <span class="comment">// It cleans up everything if it fails.</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>    }</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>  } <span class="comment">// if (!sys_err_code) (but might have become true inside)</span></div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span> </div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>  {</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>    {</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>      ios_all_saver saver(*(get_logger()-&gt;this_thread_ostream())); <span class="comment">// Revert std::oct/etc. soon.</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span> </div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span>      FLOW_LOG_WARNING</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span>        (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: mq_open() or set_resource_permissions() error (if the latter, details &quot;</span></div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>         <span class="stringliteral">&quot;above and repeated below; otherwise error details only follow) while &quot;</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>         <span class="stringliteral">&quot;constructing MQ handle to MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] in &quot;</span></div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span>         <span class="stringliteral">&quot;create-only mode; max msg size [&quot;</span> &lt;&lt; max_msg_sz &lt;&lt; <span class="stringliteral">&quot;] x [&quot;</span> &lt;&lt; max_n_msg &lt;&lt; <span class="stringliteral">&quot;] msgs; &quot;</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span>         <span class="stringliteral">&quot;perms = [&quot;</span> &lt;&lt; std::setfill(<span class="charliteral">&#39;0&#39;</span>) &lt;&lt; std::setw(4) &lt;&lt; std::oct &lt;&lt; perms.get_permissions() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span>    }</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span>    FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span> </div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>    <span class="keywordflow">if</span> (err_code)</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>    {</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>      *err_code = sys_err_code;</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>    }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>    {</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>      <span class="keywordflow">throw</span> Runtime_error(sys_err_code, FLOW_UTIL_WHERE_AM_I_STR());</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>    }</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>  } <span class="comment">// if (sys_err_code)</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>  <span class="comment">// else { Cool! }</span></div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>} <span class="comment">// Posix_mq_handle::Posix_mq_handle(Mode_tag)</span></div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span> </div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a2aa595c11d407fcf343807e64a150be5">  284</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>(flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name_arg,</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>                                 <a class="code hl_typedef" href="namespaceipc_1_1util.html#a9d84c2bab504e6de32b20c77ca9723a2">util::Create_only</a>, <span class="keywordtype">size_t</span> max_n_msg, <span class="keywordtype">size_t</span> max_msg_sz,</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>                                 <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#a1b398ae730d1e6040687cb2397115152">util::Permissions</a>&amp; perms, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span>  <a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>(util::<a class="code hl_variable" href="namespaceipc_1_1util.html#ad1ca1cab79a35e1eb1c47037a0973cd8">CREATE_ONLY</a>, logger_ptr, absolute_name_arg, max_n_msg, max_msg_sz, perms, err_code)</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>{</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>  <span class="comment">// Cool.</span></div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span>}</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span> </div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6bb78f2297f6f7c801e200af963574e">  292</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>(flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name_arg,</div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span>                                 <a class="code hl_typedef" href="namespaceipc_1_1util.html#a9571de958538d7a4a8649bbfecfac0b9">util::Open_or_create</a>, <span class="keywordtype">size_t</span> max_n_msg, <span class="keywordtype">size_t</span> max_msg_sz,</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>                                 <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#a1b398ae730d1e6040687cb2397115152">util::Permissions</a>&amp; perms, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>  <a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>(util::<a class="code hl_variable" href="namespaceipc_1_1util.html#a5664539b3d75d6d10cdfebf6eac5382d">OPEN_OR_CREATE</a>, logger_ptr, absolute_name_arg, max_n_msg, max_msg_sz, perms, err_code)</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>{</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>  <span class="comment">// Cool.</span></div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span>}</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span> </div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a01d1655e59059fcec0c983d8dbd8f991">  300</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>(flow::log::Logger* logger_ptr, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name_arg,</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span>                                 <a class="code hl_typedef" href="namespaceipc_1_1util.html#a3e03491b5b2b5fac26551a220946d6e5">util::Open_only</a>, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code) :</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>  flow::log::Log_context(logger_ptr, <a class="code hl_enumeration" href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">Log_component</a>::S_TRANSPORT),</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>  m_absolute_name(absolute_name_arg),</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>  m_interrupting_snd(false),</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>  m_interrupting_rcv(false),</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span>  m_interrupter_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>  m_interrupt_detector_snd(m_nb_task_engine),</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>  m_interrupter_rcv(m_nb_task_engine),</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>  m_interrupt_detector_rcv(m_nb_task_engine)</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>{</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>  <span class="keyword">using </span>flow::log::Sev;</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>  <span class="keyword">using </span>flow::error::Runtime_error;</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  using ::mq_open;</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span>  <span class="comment">// using ::O_RDWR; // A macro apparently.</span></div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span> </div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span>  FLOW_LOG_TRACE</div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span>    (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Constructing MQ handle to MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] in &quot;</span></div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span>     <span class="stringliteral">&quot;open-only mode.&quot;</span>);</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span> </div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span>  <span class="comment">// Get pipe stuff out of the way, as it does not need m_mq.</span></div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>  <span class="keyword">auto</span> sys_err_code = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ac2cf0213ceaa0a8c621ee2c02c6fbec6">pipe_setup</a>();</div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span> </div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>  <span class="keywordflow">if</span> (!sys_err_code)</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>  {</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>    <span class="comment">/* Note: O_NONBLOCK is something we are forced to set/unset depending on the transmission API being called.</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">     * So just don&#39;t worry about it here. */</span></div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>    <span class="keyword">const</span> <span class="keyword">auto</span> raw = mq_open(shared_name_to_mq_name(<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>()).c_str(), O_RDWR);</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>    <span class="keywordflow">if</span> (raw != -1)</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>    {</div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>(raw);</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>    }</div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span> </div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span>    <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>    {</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>      FLOW_LOG_WARNING</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>        (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: mq_open() error (error details follow) while &quot;</span></div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>         <span class="stringliteral">&quot;constructing MQ handle to MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] in open-only mode.&quot;</span>);</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>      sys_err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>    }</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>    {</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>      <span class="comment">// We never use blocking transmission -- always using *wait_*able() =&gt; interrupt_*() works.  Non-blocking 4eva.</span></div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span>      <span class="keywordflow">if</span> (!<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab68150c87931f6eb32d0908049e4dac6">set_non_blocking</a>(<span class="keyword">true</span>, &amp;sys_err_code))</div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span>      {</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>        assert(sys_err_code);</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span> </div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span>        <span class="comment">// Clean up.</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span> </div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span>        <span class="comment">// Disregard any error.  In Linux, by the way, only EBADF is possible apparently; it&#39;s fine.</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span>        mq_close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span>        <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span>      }</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span>      <span class="keywordflow">else</span></div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span>      {</div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span>        sys_err_code = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a47378b13e9dce85a1e1021896c98c3cd">epoll_setup</a>(); <span class="comment">// It logged on error; also then it cleaned up everything.</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span>      }</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>    } <span class="comment">// if (!m_mq.null()) (but it may have become null, and sys_err_code therefore truthy, inside)</span></div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span>  } <span class="comment">// if (!sys_err_code) (but it may have become truthy inside)</span></div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span> </div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>  {</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>    FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span> </div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span>    <span class="keywordflow">if</span> (err_code)</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span>    {</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span>      *err_code = sys_err_code;</div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>    }</div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span>    {</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>      <span class="keywordflow">throw</span> Runtime_error(sys_err_code, FLOW_UTIL_WHERE_AM_I_STR());</div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span>    }</div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>  }</div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span>  <span class="comment">// else { Cool! }</span></div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>} <span class="comment">// Posix_mq_handle::Posix_mq_handle(Open_only)</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span> </div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#ac2cf0213ceaa0a8c621ee2c02c6fbec6">  377</a></span><a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ac2cf0213ceaa0a8c621ee2c02c6fbec6">Posix_mq_handle::pipe_setup</a>()</div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span>{</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>  <span class="keyword">using </span>boost::asio::connect_pipe;</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span> </div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span>  <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sys_err_code;</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>  connect_pipe(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>, <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>, sys_err_code);</div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  <span class="keywordflow">if</span> (!sys_err_code)</div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>  {</div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>    connect_pipe(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>, <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a>, sys_err_code);</div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span>  }</div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span> </div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span>  {</div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span>    FLOW_LOG_WARNING</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>      (<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Constructing MQ handle to MQ at name [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>       <span class="stringliteral">&quot;connect-pipe failed.  Details follow.&quot;</span>);</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>    FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span> </div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>    <span class="comment">// Clean up first guys (might be no-op).</span></div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span>    <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sink;</div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>.close(sink);</div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>.close(sink);</div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>  }</div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span> </div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>  <span class="keywordflow">return</span> sys_err_code;</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span>} <span class="comment">// Posix_mq_handle::pipe_setup()</span></div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span> </div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a47378b13e9dce85a1e1021896c98c3cd">  404</a></span><a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a47378b13e9dce85a1e1021896c98c3cd">Posix_mq_handle::epoll_setup</a>()</div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span>{</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>  using ::epoll_create1;</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  using ::epoll_ctl;</div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  using ::mq_close;</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>  using ::close;</div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span>  <span class="keyword">using </span>Epoll_event = ::epoll_event;</div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span>  <span class="comment">// using ::EPOLL_CTL_ADD; // A macro apparently.</span></div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>  <span class="comment">// using ::EPOLLIN; // A macro apparently.</span></div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span> </div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>  <span class="comment">/* m_mq is good to go.</span></div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment">   *</span></div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment">   * Set up one epoll handle for checking for writability; another for readability.</span></div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">   * Into each one add an interrupter FD (readability of read end of an anonymous pipe).</span></div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment">   *</span></div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment">   * There&#39;s some lame cleanup logic below specific to the 2-handle situation.  It&#39;s okay.  Just, if setting</span></div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment">   * up the outgoing-direction epolliness fails, it cleans up itself.  If that succeeds, but incoming-direction</span></div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment">   * setup then fails, then after it cleans up after itself, we have to undo the outgoing-direction setup. */</span></div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span> </div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>  <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sys_err_code;</div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span> </div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>  <span class="keyword">const</span> <span class="keyword">auto</span> setup = [&amp;](<a class="code hl_struct" href="structipc_1_1util_1_1Native__handle.html">Native_handle</a>* epoll_hndl_ptr, <span class="keywordtype">bool</span> snd_else_rcv)</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>  {</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>    <span class="keyword">auto</span>&amp; epoll_hndl = *epoll_hndl_ptr;</div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span>    <span class="keyword">auto</span>&amp; interrupt_detector = snd_else_rcv ? <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a> : <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>;</div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span> </div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>    epoll_hndl = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>(epoll_create1(0));</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>    <span class="keywordflow">if</span> (epoll_hndl.m_native_handle == -1)</div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>    {</div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Created MQ handle fine, but epoll_create1() failed; &quot;</span></div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span>                       <span class="stringliteral">&quot;details follow.&quot;</span>);</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>      sys_err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span> </div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span>      <span class="comment">// Clean up.</span></div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span> </div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>      epoll_hndl = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>(); <span class="comment">// No-op as of this writing, but just to keep it maintainable do it anyway.</span></div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span> </div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span>      <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sink;</div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>.close(sink);</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>.close(sink);</div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>.close(sink);</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a>.close(sink);</div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span> </div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span>      <span class="comment">// Disregard any error.  In Linux, by the way, only EBADF is possible apparently; should be fine.</span></div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span>      mq_close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span>    }</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>    <span class="comment">// else if (epoll_hndl.m_native_handle != -1)</span></div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span> </div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span>    <span class="comment">// Each epoll_wait() will listen for transmissibility of the queue itself + readability of interrupt-pipe.</span></div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>    Epoll_event event_of_interest1;</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>    event_of_interest1.events = snd_else_rcv ? EPOLLOUT : EPOLLIN;</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>    event_of_interest1.data.fd = <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>;</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>    Epoll_event event_of_interest2;</div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>    event_of_interest2.events = EPOLLIN;</div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>    event_of_interest2.data.fd = interrupt_detector.native_handle();</div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>    <span class="keywordflow">if</span> ((epoll_ctl(epoll_hndl.m_native_handle, EPOLL_CTL_ADD, event_of_interest1.data.fd, &amp;event_of_interest1) == -1) ||</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>        (epoll_ctl(epoll_hndl.m_native_handle, EPOLL_CTL_ADD, event_of_interest2.data.fd, &amp;event_of_interest2) == -1))</div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>    {</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span>      FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Created MQ handle fine, but an epoll_ctl() failed; &quot;</span></div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>                       <span class="stringliteral">&quot;snd_else_rcv = [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]; details follow.&quot;</span>);</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>      sys_err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span> </div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span>      <span class="comment">// Clean up everything.</span></div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>      close(epoll_hndl.m_native_handle);</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>      epoll_hndl = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>      <span class="comment">// Disregard any error.  In Linux, by the way, only EBADF is possible apparently; should be fine.</span></div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span>      mq_close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span>    }</div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>  }; <span class="comment">// const auto setup =</span></div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span> </div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span>  setup(&amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>, <span class="keyword">true</span>);</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span>  <span class="keywordflow">if</span> (!sys_err_code)</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span>  {</div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span>    setup(&amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>, <span class="keyword">false</span>);</div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span>    <span class="keywordflow">if</span> (sys_err_code)</div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span>    {</div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span>      <span class="comment">// Have to undo first setup(), except m_mq+pipes cleanup was already done by 2nd setup().</span></div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span>      close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span>      <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span>    }</div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>  }</div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>  <span class="comment">// else { 1st setup() cleaned everything up. }</span></div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span> </div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span>  <span class="keywordflow">return</span> sys_err_code;</div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span>} <span class="comment">// Posix_mq_handle::epoll_setup()</span></div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span> </div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab52cab86bdc869577e8f0722c6eb3097">  495</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">Posix_mq_handle::Posix_mq_handle</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp;&amp; src) :</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>  <a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>()</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>{</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeec1f1528e8d51e85f0cbb784ea23e4b">operator=</a>(std::move(src));</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span>}</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span> </div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa8e2e4c19715424d35b4572a29de126b">  501</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa8e2e4c19715424d35b4572a29de126b">Posix_mq_handle::~Posix_mq_handle</a>()</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>{</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span>  using ::mq_close;</div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span>  using ::close;</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span> </div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span>  <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>  {</div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: No MQ handle to close in destructor.&quot;</span>);</div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span>    assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>());</div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>    assert(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>());</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span>  }</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>  {</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Closing MQ handle (and epoll set).&quot;</span>);</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span>    <span class="comment">// Disregard any error.  In Linux, by the way, only EBADF is possible apparently; we should be fine.</span></div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span>    mq_close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span> </div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span>    assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>());</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>    assert(!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>());</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>    close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>); <span class="comment">// Ditto regarding errors.</span></div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span>    close(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>);</div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span>  }</div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span>} <span class="comment">// Posix_mq_handle::~Posix_mq_handle()</span></div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span> </div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeec1f1528e8d51e85f0cbb784ea23e4b">  525</a></span><a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeec1f1528e8d51e85f0cbb784ea23e4b">Posix_mq_handle::operator=</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp;&amp; src)</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>{</div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceipc_1_1transport.html#a65015c97813a6609da035fe86d1a36c0">std::swap</a>;</div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span> </div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span>  <span class="keywordflow">if</span> (&amp;src != <span class="keyword">this</span>)</div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span>  {</div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6fae02d734897a9149a7b271a146f41">m_absolute_name</a>.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#a8328c9a6bc2739145087515ee8e677d8">clear</a>();</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a> = <a class="code hl_typedef" href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">Native_handle</a>();</div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a> = <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a4bf3bfa8192e7d73e52054c63919187a">Pipe_writer</a>(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>);</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a> = <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0cf6cf0cd88b34cfd7dd93d66e383f95">Pipe_reader</a>(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>);</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a> = <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a4bf3bfa8192e7d73e52054c63919187a">Pipe_writer</a>(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>);</div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a> = <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0cf6cf0cd88b34cfd7dd93d66e383f95">Pipe_reader</a>(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>);</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span> </div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>    <a class="code hl_friend" href="classipc_1_1transport_1_1Posix__mq__handle.html#a65015c97813a6609da035fe86d1a36c0">swap</a>(*<span class="keyword">this</span>, src);</div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>  }</div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span>}</div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span> </div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a65015c97813a6609da035fe86d1a36c0">  545</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; val1, <a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; val2)</div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span>{</div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">util::Pipe_writer</a>;</div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">util::Pipe_reader</a>;</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span>  <span class="keyword">using </span>flow::log::Log_context;</div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceipc_1_1transport.html#a65015c97813a6609da035fe86d1a36c0">std::swap</a>;</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>  <span class="keyword">using </span>boost::array;</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span> </div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span>  <span class="comment">// This is a bit faster than un-specialized std::swap() which would require a move ction + 3 move assignments.</span></div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span> </div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(<span class="keyword">static_cast&lt;</span>Log_context&amp;<span class="keyword">&gt;</span>(val1), <span class="keyword">static_cast&lt;</span>Log_context&amp;<span class="keyword">&gt;</span>(val2));</div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>);</div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6fae02d734897a9149a7b271a146f41">m_absolute_name</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6fae02d734897a9149a7b271a146f41">m_absolute_name</a>);</div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a>);</div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>);</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a75eac3aa00f897013338aebbfa00b7e2">m_interrupting_snd</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a75eac3aa00f897013338aebbfa00b7e2">m_interrupting_snd</a>);</div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>  <a class="code hl_function" href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">swap</a>(val1.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae1ec26a4ea667cfc04d4de889b14ed68">m_interrupting_rcv</a>, val2.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae1ec26a4ea667cfc04d4de889b14ed68">m_interrupting_rcv</a>);</div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span> </div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>  <span class="comment">/* This is annoying!  Maybe we should just wrap all these in unique_ptr&lt;&gt;s to avoid this nonsense.</span></div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment">   * As it is, it might be unsafe to swap asio objects apart from their Task_engines, so doing this blech. */</span></div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>  <span class="keywordflow">try</span></div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>  {</div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span>    array&lt;Native_handle, 4&gt; fds1;</div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>    array&lt;Native_handle, 4&gt; fds2;</div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span>    <span class="keyword">const</span> <span class="keyword">auto</span> unload = [&amp;](<a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; val, <span class="keyword">auto</span>&amp; fds)</div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span>    {</div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span>      <span class="keywordflow">if</span> (val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>.is_open())</div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>      {</div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>        fds[0].m_native_handle = val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>.release();</div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span>      }</div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span>      <span class="keywordflow">if</span> (val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a>.is_open())</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>      {</div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>        fds[1].m_native_handle = val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a>.release();</div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>      }</div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span>      <span class="keywordflow">if</span> (val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>.is_open())</div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span>      {</div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span>        fds[2].m_native_handle = val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>.release();</div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span>      }</div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span>      <span class="keywordflow">if</span> (val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>.is_open())</div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span>      {</div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span>        fds[3].m_native_handle = val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>.release();</div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span>      }</div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span>    };</div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span>    unload(val1, fds1);</div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span>    unload(val2, fds2);</div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span> </div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span>    <span class="keyword">const</span> <span class="keyword">auto</span> reload = [&amp;](<a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; val, <span class="keyword">auto</span>&amp; fds)</div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span>    {</div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span>      <span class="comment">// Leave their stupid task engines in-place.  Do need to reassociate them with the swapped FDs though.</span></div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span>      val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a></div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span>        = fds[0].null() ? <a class="code hl_typedef" href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">Pipe_writer</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>)</div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span>                        : <a class="code hl_typedef" href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">Pipe_writer</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>, fds[0].m_native_handle);</div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span>      val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a></div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span>        = fds[1].null() ? <a class="code hl_typedef" href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">Pipe_writer</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>)</div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span>                        : <a class="code hl_typedef" href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">Pipe_writer</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>, fds[1].m_native_handle);</div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span>      val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a></div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span>        = fds[2].null() ? <a class="code hl_typedef" href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">Pipe_reader</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>)</div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span>                        : <a class="code hl_typedef" href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">Pipe_reader</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>, fds[2].m_native_handle);</div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span>      val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a></div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span>        = fds[3].null() ? <a class="code hl_typedef" href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">Pipe_reader</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>)</div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span>                        : <a class="code hl_typedef" href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">Pipe_reader</a>(val.<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">m_nb_task_engine</a>, fds[3].m_native_handle);</div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span>    };</div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span>    reload(val1, fds2); <span class="comment">// Swap &#39;em.</span></div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span>    reload(val2, fds1);</div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span>  }</div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span>  <span class="keywordflow">catch</span> (...) <span class="comment">// .release() and ctor can throw, and they really shouldn&#39;t at all.</span></div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span>  {</div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span>    assert(<span class="keyword">false</span> &amp;&amp; <span class="stringliteral">&quot;Horrible exception.&quot;</span>); std::abort();</div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span>  }</div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span>} <span class="comment">// swap()</span></div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span> </div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a412e7c922909eeb5707bb0abe6e27a76">  616</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a412e7c922909eeb5707bb0abe6e27a76">Posix_mq_handle::max_msg_size</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span>  using ::mq_attr;</div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span>  using ::mq_getattr;</div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span> </div>
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: max_msg_size() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span> </div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span>  mq_attr attr;</div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span>  <span class="keywordflow">if</span> (mq_getattr(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>, &amp;attr) != 0)</div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span>  {</div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span>    <span class="comment">/* We could handle error gracefully, as we do elsewhere, but EBADF is the only possibility, and there&#39;s zero</span></div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment">     * reason it should happen unles m_mq is null at this point.  It&#39;d be fine to handle it, but then we&#39;d have</span></div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment">     * to emit an Error_code, and the API would change, and the user would have more to worry about; I (ygoldfel)</span></div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment">     * decided it&#39;s overkill.  So if it does happen, log and assert(). @todo Maybe reconsider. */</span></div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span>    <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sink;</div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, &amp;sink, <span class="stringliteral">&quot;Posix_mq_handle::max_msg_size: mq_getattr()&quot;</span>);</div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span>    assert(<span class="keyword">false</span> &amp;&amp; <span class="stringliteral">&quot;mq_getattr() failed (details logged); this is too bizarre.&quot;</span>);</div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span>  }</div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span> </div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>  <span class="keywordflow">return</span> size_t(attr.mq_msgsize);</div>
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>} <span class="comment">// Posix_mq_handle::max_msg_size()</span></div>
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span> </div>
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a514dbdda12ec70ea1ff65abfa6237ce2">  641</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a514dbdda12ec70ea1ff65abfa6237ce2">Posix_mq_handle::max_n_msgs</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span>  <span class="comment">// Very similar to max_msg_size().  @todo Maybe code reuse.  Though line count might be even greater then so....</span></div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span> </div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span>  using ::mq_attr;</div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span>  using ::mq_getattr;</div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: max_n_msgs() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span>  mq_attr attr;</div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span>  <span class="keywordflow">if</span> (mq_getattr(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>, &amp;attr) != 0)</div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span>  {</div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span>    <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a> sink;</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, &amp;sink, <span class="stringliteral">&quot;Posix_mq_handle::max_msg_size: mq_getattr()&quot;</span>);</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span>    assert(<span class="keyword">false</span> &amp;&amp; <span class="stringliteral">&quot;mq_getattr() failed (details logged); this is too bizarre.&quot;</span>);</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span>  }</div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span>  <span class="keywordflow">return</span> size_t(attr.mq_maxmsg);</div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span>} <span class="comment">// Posix_mq_handle::max_msg_size()</span></div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span> </div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab68150c87931f6eb32d0908049e4dac6">  660</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab68150c87931f6eb32d0908049e4dac6">Posix_mq_handle::set_non_blocking</a>(<span class="keywordtype">bool</span> nb, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span>{</div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span>  using ::mq_attr;</div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span>  using ::mq_setattr;</div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>  <span class="comment">// using ::O_NONBLOCK; // A macro apparently.</span></div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span> </div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>  assert(err_code);</div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span> </div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span>  <span class="comment">/* By the way -- no, this cannot be done in mq_attr that goes into mq_open().  It is ignored there according to docs.</span></div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="comment">   * Would&#39;ve been nice actually.... */</span></div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span> </div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span>  mq_attr attr;</div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span>  attr.mq_flags = nb ? O_NONBLOCK : 0;</div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(mq_setattr(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>, &amp;attr, 0),</div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span>                              err_code, <span class="stringliteral">&quot;Posix_mq_handle::set_non_blocking(): mq_setattr()&quot;</span>);</div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span>} <span class="comment">// Posix_mq_handle::set_non_blocking()</span></div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span> </div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5787b3fe1eb2a7f5f6abda8b9536529b">  678</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5787b3fe1eb2a7f5f6abda8b9536529b">Posix_mq_handle::try_send</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>&amp; blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>{</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span>  using ::mq_send;</div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span> </div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5787b3fe1eb2a7f5f6abda8b9536529b">try_send</a>, blob, _1);</div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span> </div>
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: try_send() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span> </div>
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span>  <span class="keyword">auto</span> <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = blob.data();</div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span>                 <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span>  <span class="keywordflow">if</span> (blob.size() == 0)</div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span>  {</div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span>    <span class="comment">/* ::mq_send(..., nullptr, N), even when N == 0, is (1) empirically speaking harmless but (2) technically</span></div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span><span class="comment">     * in violation of arg 2&#39;s non-null decl (even though `N == 0` is explicitly allowed per `man` page) hence</span></div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span><span class="comment">     * (3) causes a clang UBSAN sanitizer error.  So waste a couple cycles by feeding it this dummy</span></div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment">     * non-null value. */</span></div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span>    <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(&amp;<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>);</div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span>  }</div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span>  <span class="keywordflow">else</span> <span class="comment">// if (blob.size() != 0)</span></div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span>  {</div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span>    FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span>  }</div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span> </div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span>  <span class="keywordflow">if</span> (mq_send(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span>              <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>),</div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span>              blob.size(), 0) == 0)</div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span>  {</div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span>  }</div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span>  <span class="keywordflow">if</span> (errno == EAGAIN)</div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span>  {</div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span>                  <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.&quot;</span>);</div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Queue full.</span></div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span>  }</div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span> </div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::try_send(): mq_send(nb)&quot;</span>);</div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span>  assert(*err_code);</div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span>} <span class="comment">// Posix_mq_handle::try_send()</span></div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span> </div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6e9b11537c7c83f43728aca7af348a42">  728</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6e9b11537c7c83f43728aca7af348a42">Posix_mq_handle::send</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>&amp; blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span>{</div>
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span>  using ::mq_send;</div>
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span> </div>
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span>  <span class="keywordflow">if</span> (flow::error::exec_void_and_throw_on_error</div>
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span>        ([&amp;](<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* actual_err_code) { <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a6e9b11537c7c83f43728aca7af348a42">send</a>(blob, actual_err_code); },</div>
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span>         err_code, <span class="stringliteral">&quot;Posix_mq_handle::send()&quot;</span>))</div>
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span>  {</div>
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span>  }</div>
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span> </div>
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: send() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span> </div>
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span>  <span class="keyword">auto</span> <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = blob.data();</div>
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span>                 <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;].  Trying nb-push first; if it succeeds -- great.  &quot;</span></div>
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span>                 <span class="stringliteral">&quot;Else will wait/retry/wait/retry/....&quot;</span>);</div>
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span>  <span class="keywordflow">if</span> (blob.size() == 0)</div>
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span>  {</div>
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span>    <span class="comment">// See similarly-placed comment in try_send() which explains this.</span></div>
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span>    <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(&amp;<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>);</div>
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span>  }</div>
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span>  <span class="keywordflow">else</span> <span class="comment">// if (blob.size() != 0)</span></div>
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span>  {</div>
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span>    FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span>  }</div>
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span> </div>
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span>  <span class="comment">/* We could just invoke blocking mq_send(m_mq), but to get the promised logging we go a tiny bit fancier as follows.</span></div>
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span><span class="comment">   * Update: Now that we have to be interrupt_*()ible, also reuse wait_*() instead of using native</span></div>
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span><span class="comment">   * blocking mq_*(). */</span></div>
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span> </div>
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span>  {</div>
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span>    <span class="keywordflow">if</span> (mq_send(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span>                <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>),</div>
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span>                blob.size(), 0) == 0)</div>
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span>    {</div>
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span>      err_code-&gt;clear();</div>
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span>      <span class="keywordflow">return</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span>    }</div>
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span>    <span class="keywordflow">if</span> (errno != EAGAIN)</div>
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span>    {</div>
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::send(): mq_send(nb)&quot;</span>);</div>
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span>      assert(*err_code);</div>
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span>    }</div>
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span>    <span class="comment">// else if (would-block): as promised, INFO logs.</span></div>
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span> </div>
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span>                   <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.  Executing blocking-wait.&quot;</span>);</div>
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span> </div>
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#acf32c33a96d66436628153c74d4a8eb9">wait_sendable</a>(err_code);</div>
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span>    <span class="keywordflow">if</span> (*err_code)</div>
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span>    {</div>
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span>      <span class="comment">// Whether interrupted or true error, we&#39;re done.</span></div>
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span>    }</div>
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span> </div>
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Blocking-wait reported transmissibility.  Retrying.&quot;</span>);</div>
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span>  } <span class="comment">// while (true)</span></div>
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span>} <span class="comment">// Posix_mq_handle::send()</span></div>
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span> </div>
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe2b3968c60945224ddfce119bcae018">  796</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe2b3968c60945224ddfce119bcae018">Posix_mq_handle::timed_send</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>&amp; blob, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> timeout_from_now,</div>
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span>                                 <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span>{</div>
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span>  <span class="keyword">using </span>flow::util::time_since_posix_epoch;</div>
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span>  <span class="keyword">using </span>flow::Fine_clock;</div>
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span>  <span class="keyword">using </span>boost::chrono::floor;</div>
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span>  <span class="keyword">using </span>boost::chrono::round;</div>
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span>  <span class="keyword">using </span>boost::chrono::nanoseconds;</div>
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span>  using ::mq_send;</div>
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span> </div>
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno">  810</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe2b3968c60945224ddfce119bcae018">timed_send</a>, blob, timeout_from_now, _1);</div>
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span> </div>
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span>  <span class="comment">// Similar to a combo of (blocking) send() and (non-blocking) try_send() -- keeping comments light where redundant.</span></div>
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span> </div>
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: timed_send() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span> </div>
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span>  <span class="keyword">auto</span> <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = blob.data();</div>
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-timed-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span>                 <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;]; timeout ~[&quot;</span> &lt;&lt; round&lt;microseconds&gt;(timeout_from_now) &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span>                 <span class="stringliteral">&quot;Trying nb-push first; if it succeeds -- great.  Else will wait/retry/wait/retry/....&quot;</span>);</div>
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno">  822</span>  <span class="keywordflow">if</span> (blob.size() == 0)</div>
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span>  {</div>
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span>    <span class="comment">// See similarly-placed comment in try_send() which explains this.</span></div>
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span>    <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> = <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(&amp;<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>);</div>
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span>  }</div>
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span>  <span class="keywordflow">else</span> <span class="comment">// if (blob.size() != 0)</span></div>
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span>  {</div>
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span>    FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span>  }</div>
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span> </div>
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span>  <span class="keyword">auto</span> now = Fine_clock::now();</div>
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span>  <span class="keyword">auto</span> after = now;</div>
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span> </div>
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span>  {</div>
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span>    <span class="keywordflow">if</span> (mq_send(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span>                <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(<a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a>),</div>
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span>                blob.size(), 0) == 0)</div>
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span>    {</div>
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno">  841</span>      err_code-&gt;clear();</div>
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span>      <span class="keywordflow">break</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span>    }</div>
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span>    <span class="keywordflow">if</span> (errno != EAGAIN)</div>
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span>    {</div>
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::send(): mq_send(nb)&quot;</span>);</div>
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span>      assert(*err_code);</div>
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span>    }</div>
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span>    <span class="comment">// else if (would-block): as promised, INFO logs.</span></div>
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span> </div>
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-push of blob @[&quot;</span> &lt;&lt; <a class="code hl_function" href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">blob_data</a> &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span>                   <span class="stringliteral">&quot;size [&quot;</span> &lt;&lt; blob.size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.  Executing blocking-wait.&quot;</span>);</div>
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span> </div>
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span>    timeout_from_now -= (after - now); <span class="comment">// No-op the first time; after that reduces time left.</span></div>
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> ready = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa46ffcc8019c998313c18ed05b7c6ad3">timed_wait_sendable</a>(timeout_from_now, err_code);</div>
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span>    <span class="keywordflow">if</span> (*err_code)</div>
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span>    {</div>
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span>      <span class="comment">// Whether interrupted or true error, we&#39;re done.</span></div>
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span>    }</div>
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span>    <span class="comment">// else:</span></div>
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span> </div>
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span>    <span class="keywordflow">if</span> (!ready) <span class="comment">// I.e., if (timed out).</span></div>
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span>    {</div>
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Did not finish before timeout.&quot;</span>);</div>
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span>    }</div>
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span>    <span class="comment">// else: successful wait for transmissibility.  Try nb-transmitting again.</span></div>
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Blocking-wait reported transmissibility.  Retrying.&quot;</span>);</div>
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span> </div>
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span>    after = Fine_clock::now();</div>
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span>    assert((after &gt;= now) &amp;&amp; <span class="stringliteral">&quot;Fine_clock is supposed to never go backwards.&quot;</span>);</div>
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span>  } <span class="comment">// while (true)</span></div>
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span> </div>
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span>} <span class="comment">// Posix_mq_handle::timed_send()</span></div>
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span> </div>
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe9a423ceda292d5b01b54039102170b">  880</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe9a423ceda292d5b01b54039102170b">Posix_mq_handle::try_receive</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>* blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span>{</div>
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>;</div>
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span>  using ::mq_receive;</div>
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span> </div>
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#abe9a423ceda292d5b01b54039102170b">try_receive</a>, blob, _1);</div>
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span> </div>
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: try_receive() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span> </div>
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span>                 <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span> </div>
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span>  ssize_t n_rcvd;</div>
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pri_ignored;</div>
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span>  <span class="keywordflow">if</span> ((n_rcvd = mq_receive(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span>                           <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(blob-&gt;data()),</div>
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span>                           blob-&gt;size(), &amp;pri_ignored)) &gt;= 0)</div>
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span>  {</div>
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno">  902</span>    *blob = <a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">Blob_mutable</a>(blob-&gt;data(), n_rcvd);</div>
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno">  903</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Received message sized [&quot;</span> &lt;&lt; n_rcvd &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span>    <span class="keywordflow">if</span> (blob-&gt;size() != 0)</div>
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span>    {</div>
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span>      FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(*blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span>    }</div>
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span>  }</div>
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span>  <span class="keywordflow">if</span> (errno == EAGAIN)</div>
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span>  {</div>
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span>                   <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.&quot;</span>);</div>
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Queue full.</span></div>
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span>  }</div>
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span> </div>
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::try_receive(): mq_receive(nb)&quot;</span>);</div>
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span>  assert(*err_code);</div>
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span>} <span class="comment">// Posix_mq_handle::try_receive()</span></div>
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span> </div>
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a65f35bfe249b13dc3bc0442d10a55a0f">  926</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a65f35bfe249b13dc3bc0442d10a55a0f">Posix_mq_handle::receive</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>* blob, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span>{</div>
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>;</div>
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span>  using ::mq_receive;</div>
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span> </div>
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span>  <span class="keywordflow">if</span> (flow::error::exec_void_and_throw_on_error</div>
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span>        ([&amp;](<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* actual_err_code) { <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a65f35bfe249b13dc3bc0442d10a55a0f">receive</a>(blob, actual_err_code); },</div>
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span>         err_code, <span class="stringliteral">&quot;Posix_mq_handle::receive()&quot;</span>))</div>
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  {</div>
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span>  }</div>
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span> </div>
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: receive() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span> </div>
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno">  944</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span>                 <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;].  Trying nb-pop first; if it succeeds -- great.  &quot;</span></div>
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span>                 <span class="stringliteral">&quot;Else will wait/retry/wait/retry/....&quot;</span>);</div>
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span> </div>
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span>  <span class="comment">/* We could just invoke blocking mq_receive(m_mq), but to get the promised logging we go tiny bit fancier as follows.</span></div>
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span><span class="comment">   * Update: Now that we have to be interrupt_*()ible, also reuse wait_*() instead of using native</span></div>
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span><span class="comment">   * blocking mq_*(). */</span></div>
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span> </div>
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span>  ssize_t n_rcvd;</div>
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pri_ignored;</div>
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span> </div>
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span>  {</div>
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span>    <span class="keywordflow">if</span> ((n_rcvd = mq_receive(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span>                             <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(blob-&gt;data()),</div>
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span>                             blob-&gt;size(), &amp;pri_ignored)) &gt;= 0)</div>
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span>    {</div>
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span>      *blob = <a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">Blob_mutable</a>(blob-&gt;data(), n_rcvd);</div>
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Received message sized [&quot;</span> &lt;&lt; n_rcvd &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span>      <span class="keywordflow">if</span> (blob-&gt;size() != 0)</div>
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span>      {</div>
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span>        FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(*blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span>      }</div>
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span>      err_code-&gt;clear();</div>
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span>      <span class="keywordflow">return</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span>    }</div>
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span>    <span class="keywordflow">if</span> (errno != EAGAIN)</div>
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span>    {</div>
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::receive(): mq_receive(nb)&quot;</span>);</div>
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span>      assert(*err_code);</div>
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span>    }</div>
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span>    <span class="comment">// else if (would-block): as promised, INFO logs.</span></div>
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span> </div>
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span>                   <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.  Executing blocking-wait.&quot;</span>);</div>
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span> </div>
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0f93df71d0c476e17b32ca4d6bf82b9b">wait_receivable</a>(err_code);</div>
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span>    <span class="keywordflow">if</span> (*err_code)</div>
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span>    {</div>
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span>      <span class="comment">// Whether interrupted or true error, we&#39;re done.</span></div>
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span>      <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span>    }</div>
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span> </div>
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Blocking-wait reported transmissibility.  Retrying.&quot;</span>);</div>
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span>  } <span class="comment">// while (true)</span></div>
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span>} <span class="comment">// Posix_mq_handle::receive()</span></div>
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span> </div>
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa853452d0d0aeeaf61461cc8a48b5c09">  994</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa853452d0d0aeeaf61461cc8a48b5c09">Posix_mq_handle::timed_receive</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>* blob, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> timeout_from_now,</div>
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span>                                    <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span>{</div>
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>;</div>
<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span>  <span class="keyword">using </span>flow::Fine_clock;</div>
<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>  <span class="keyword">using </span>flow::util::time_since_posix_epoch;</div>
<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span>  <span class="keyword">using </span>flow::util::buffers_dump_string;</div>
<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span>  <span class="keyword">using </span>boost::chrono::floor;</div>
<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span>  <span class="keyword">using </span>boost::chrono::round;</div>
<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span>  <span class="keyword">using </span>boost::chrono::nanoseconds;</div>
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span>  using ::mq_receive;</div>
<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span>  <span class="comment">// using ::EAGAIN; // A macro apparently.</span></div>
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span> </div>
<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa853452d0d0aeeaf61461cc8a48b5c09">timed_receive</a>, blob, timeout_from_now, _1);</div>
<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span> </div>
<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span>  <span class="comment">// Similar to a combo of (blocking) receive() and (non-blocking) try_receive() -- keeping comments light if redundant.</span></div>
<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span> </div>
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: timed_receive() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span> </div>
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span>  FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-timed-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span>                 <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;]; timeout ~[&quot;</span> &lt;&lt; round&lt;microseconds&gt;(timeout_from_now) &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span>                 <span class="stringliteral">&quot;Trying nb-pop first; if it succeeds -- great.  Else will wait/retry/wait/retry/....&quot;</span>);</div>
<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span> </div>
<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span>  ssize_t n_rcvd;</div>
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pri_ignored;</div>
<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span> </div>
<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span>  <span class="keyword">auto</span> now = Fine_clock::now();</div>
<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span>  <span class="keyword">auto</span> after = now;</div>
<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span> </div>
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span>  {</div>
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span>    <span class="keywordflow">if</span> ((n_rcvd = mq_receive(<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>,</div>
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span>                             <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(blob-&gt;data()),</div>
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span>                             blob-&gt;size(), &amp;pri_ignored)) &gt;= 0)</div>
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span>    {</div>
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span>      *blob = <a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">Blob_mutable</a>(blob-&gt;data(), n_rcvd);</div>
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Received message sized [&quot;</span> &lt;&lt; n_rcvd &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span>      <span class="keywordflow">if</span> (blob-&gt;size() != 0)</div>
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span>      {</div>
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span>        FLOW_LOG_DATA(<span class="stringliteral">&quot;Blob contents: [\n&quot;</span> &lt;&lt; buffers_dump_string(*blob, <span class="stringliteral">&quot;  &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span>      }</div>
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span>      err_code-&gt;clear();</div>
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span>      <span class="keywordflow">break</span>; <span class="comment">// Instant success.</span></div>
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span>    }</div>
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span>    <span class="comment">// else</span></div>
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span>    <span class="keywordflow">if</span> (errno != EAGAIN)</div>
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>    {</div>
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>      <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">handle_mq_api_result</a>(-1, err_code, <span class="stringliteral">&quot;Posix_mq_handle::timed_receive(): mq_receive(nb)&quot;</span>);</div>
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>      assert(*err_code);</div>
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span>    }</div>
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span>    <span class="comment">// else if (would-block): as promised, INFO logs.</span></div>
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span> </div>
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Nb-pop to blob @[&quot;</span> &lt;&lt; blob-&gt;data() &lt;&lt; <span class="stringliteral">&quot;], &quot;</span></div>
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span>                   <span class="stringliteral">&quot;max-size [&quot;</span> &lt;&lt; blob-&gt;size() &lt;&lt; <span class="stringliteral">&quot;]: would-block.  Executing blocking-wait.&quot;</span>);</div>
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span> </div>
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span>    timeout_from_now -= (after - now); <span class="comment">// No-op the first time; after that reduces time left.</span></div>
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> ready = <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64079f1c9315af2e75e808b6ae5312e5">timed_wait_receivable</a>(timeout_from_now, err_code);</div>
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span>    <span class="keywordflow">if</span> (*err_code)</div>
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span>    {</div>
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span>      <span class="comment">// Whether interrupted or true error, we&#39;re done.</span></div>
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>    }</div>
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span>    <span class="comment">// else:</span></div>
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span> </div>
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span>    <span class="keywordflow">if</span> (!ready) <span class="comment">// I.e., if (timed out).</span></div>
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span>    {</div>
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span>      FLOW_LOG_TRACE(<span class="stringliteral">&quot;Did not finish before timeout.&quot;</span>);</div>
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span>    }</div>
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span>    <span class="comment">// else: successful wait for transmissibility.  Try nb-transmitting again.</span></div>
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Blocking-wait reported transmissibility.  Retrying.&quot;</span>);</div>
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span> </div>
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span>    after = Fine_clock::now();</div>
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span>    assert((after &gt;= now) &amp;&amp; <span class="stringliteral">&quot;Fine_clock is supposed to never go backwards.&quot;</span>);</div>
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span>  } <span class="comment">// while (true)</span></div>
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span> </div>
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span>} <span class="comment">// Posix_mq_handle::timed_receive()</span></div>
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span> </div>
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span><span class="keyword">template</span>&lt;<span class="keywordtype">bool</span> SND_ELSE_RCV&gt;</div>
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a98884af2e485268f92b3f5f7c1069291"> 1079</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a98884af2e485268f92b3f5f7c1069291">Posix_mq_handle::interrupt_impl</a>()</div>
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span>{</div>
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">util::Blob_const</a>;</div>
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span> </div>
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: interrupt_impl() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> </div>
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span>  <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a4bf3bfa8192e7d73e52054c63919187a">Pipe_writer</a>* interrupter_ptr;</div>
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span>  <span class="keywordtype">bool</span>* interrupting_ptr;</div>
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span>  <span class="keywordflow">if</span> <span class="keyword">constexpr</span>(SND_ELSE_RCV)</div>
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span>  {</div>
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span>    interrupter_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">m_interrupter_snd</a>; interrupting_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a75eac3aa00f897013338aebbfa00b7e2">m_interrupting_snd</a>;</div>
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span>  }</div>
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span>  {</div>
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span>    interrupter_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">m_interrupter_rcv</a>; interrupting_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae1ec26a4ea667cfc04d4de889b14ed68">m_interrupting_rcv</a>;</div>
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span>  }</div>
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span>  <span class="keyword">auto</span>&amp; interrupter = *interrupter_ptr;</div>
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span>  <span class="keyword">auto</span>&amp; interrupting = *interrupting_ptr;</div>
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span> </div>
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span>  <span class="keywordflow">if</span> (interrupting)</div>
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span>  {</div>
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Interrupt mode already ON for &quot;</span></div>
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span>                     <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; SND_ELSE_RCV &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span>  }</div>
<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span> </div>
<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span>  interrupting = <span class="keyword">true</span>; <span class="comment">// Reminder: This member is for the above guard *only*.  wait_impl() relies on FD state.</span></div>
<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Interrupt mode turning ON for &quot;</span></div>
<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span>                <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; SND_ELSE_RCV &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span> </div>
<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span>  <a class="code hl_function" href="namespaceipc_1_1util.html#a5429c6225cc9a271ad8c0041d99c236b">util::pipe_produce</a>(get_logger(), &amp;interrupter);</div>
<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span> </div>
<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span>  <span class="comment">// Now any level-triggered poll-wait will detect that this mode is on.</span></div>
<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span>} <span class="comment">// Posix_mq_handle::interrupt_impl()</span></div>
<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span> </div>
<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span><span class="keyword">template</span>&lt;<span class="keywordtype">bool</span> SND_ELSE_RCV&gt;</div>
<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a88e37b4835abbc491df222aebe31f46f"> 1118</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a88e37b4835abbc491df222aebe31f46f">Posix_mq_handle::allow_impl</a>()</div>
<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span>{</div>
<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">util::Blob_mutable</a>;</div>
<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span> </div>
<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: allow_impl() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span> </div>
<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span>  <span class="comment">// Inverse of interrupt_impl().  Keeping comments light.</span></div>
<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span> </div>
<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span>  <a class="code hl_typedef" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0cf6cf0cd88b34cfd7dd93d66e383f95">Pipe_reader</a>* interrupt_detector_ptr;</div>
<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span>  <span class="keywordtype">bool</span>* interrupting_ptr;</div>
<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span>  <span class="keywordflow">if</span> <span class="keyword">constexpr</span>(SND_ELSE_RCV)</div>
<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span>  {</div>
<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span>    interrupt_detector_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">m_interrupt_detector_snd</a>; interrupting_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a75eac3aa00f897013338aebbfa00b7e2">m_interrupting_snd</a>;</div>
<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span>  }</div>
<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span>  {</div>
<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span>    interrupt_detector_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">m_interrupt_detector_rcv</a>; interrupting_ptr = &amp;<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae1ec26a4ea667cfc04d4de889b14ed68">m_interrupting_rcv</a>;</div>
<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span>  }</div>
<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span>  <span class="keyword">auto</span>&amp; interrupt_detector = *interrupt_detector_ptr;</div>
<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span>  <span class="keyword">auto</span>&amp; interrupting = *interrupting_ptr;</div>
<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span> </div>
<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span>  <span class="keywordflow">if</span> (!interrupting)</div>
<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span>  {</div>
<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Interrupt mode already OFF for &quot;</span></div>
<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span>                     <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; SND_ELSE_RCV &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span>  }</div>
<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span> </div>
<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span>  interrupting = <span class="keyword">false</span>;</div>
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Interrupt mode turning OFF for &quot;</span></div>
<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span>                <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; SND_ELSE_RCV &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span> </div>
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span>  <a class="code hl_function" href="namespaceipc_1_1util.html#a814272e555c0592b0caf92b7bc3d64b3">util::pipe_consume</a>(get_logger(), &amp;interrupt_detector);</div>
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span> </div>
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span>  <span class="comment">// Now any level-triggered poll-wait will detect that this mode is off.</span></div>
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span>} <span class="comment">// Posix_mq_handle::allow_impl()</span></div>
<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span> </div>
<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0afe8a636902116223b4f33f081119df"> 1158</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0afe8a636902116223b4f33f081119df">Posix_mq_handle::interrupt_sends</a>()</div>
<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span>{</div>
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span>  <span class="keywordflow">return</span> interrupt_impl&lt;true&gt;();</div>
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span>}</div>
<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span> </div>
<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a01d842eb304fff361d72a090113ffc9f"> 1163</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a01d842eb304fff361d72a090113ffc9f">Posix_mq_handle::allow_sends</a>()</div>
<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span>{</div>
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span>  <span class="keywordflow">return</span> allow_impl&lt;true&gt;();</div>
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span>}</div>
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span> </div>
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a02262faa0f53b5518db359b4e5968b47"> 1168</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a02262faa0f53b5518db359b4e5968b47">Posix_mq_handle::interrupt_receives</a>()</div>
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span>{</div>
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span>  <span class="keywordflow">return</span> interrupt_impl&lt;false&gt;();</div>
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span>}</div>
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span> </div>
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a4041e66104bf38ddc9dce34d11ccd405"> 1173</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a4041e66104bf38ddc9dce34d11ccd405">Posix_mq_handle::allow_receives</a>()</div>
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span>{</div>
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span>  <span class="keywordflow">return</span> allow_impl&lt;false&gt;();</div>
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span>}</div>
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span> </div>
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9"> 1178</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">Posix_mq_handle::wait_impl</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> timeout_from_now_or_none, <span class="keywordtype">bool</span> snd_else_rcv, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span>{</div>
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#aa3808edfc4d59bce4b9800d6a60026d3">util::Fine_time_pt</a>;</div>
<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a>;</div>
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span>  <span class="keyword">using </span>flow::util::time_since_posix_epoch;</div>
<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span>  <span class="keyword">using </span>boost::chrono::round;</div>
<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span>  <span class="keyword">using </span>boost::array;</div>
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span>  using ::epoll_wait;</div>
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span>  <span class="keyword">using </span>Epoll_event = ::epoll_event;</div>
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span> </div>
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>, timeout_from_now_or_none, snd_else_rcv, _1);</div>
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span> </div>
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span>  assert((!<a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_function" href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">null</a>())</div>
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span>         &amp;&amp; <span class="stringliteral">&quot;As advertised: wait_impl() =&gt; undefined behavior if not successfully cted or was moved-from.&quot;</span>);</div>
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span> </div>
<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span>  <span class="comment">/* By the way -- epoll_wait() takes # of milliseconds, so round up to that and no need to do crazy stuff like</span></div>
<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span><span class="comment">   * timed_send() et al; just convert to milliseconds. */</span></div>
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span>  <span class="keywordtype">int</span> epoll_timeout_from_now_ms;</div>
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span>  milliseconds epoll_timeout_from_now;</div>
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span>  <span class="keywordflow">if</span> (timeout_from_now_or_none == Fine_duration::max())</div>
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span>  {</div>
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span>    epoll_timeout_from_now_ms = -1;</div>
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Infinite-await-unstarved for &quot;</span></div>
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span>                   <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;].  Will perform an epoll_wait().&quot;</span>);</div>
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span>  }</div>
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span>  {</div>
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span>    epoll_timeout_from_now = round&lt;milliseconds&gt;(timeout_from_now_or_none);</div>
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-await/poll-unstarved for &quot;</span></div>
<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span>                   <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]; timeout ~[&quot;</span> &lt;&lt; epoll_timeout_from_now &lt;&lt; <span class="stringliteral">&quot;] -- &quot;</span></div>
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span>                   <span class="stringliteral">&quot;if 0 then poll.  Will perform an epoll_wait().&quot;</span>);</div>
<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span>    epoll_timeout_from_now_ms = int(epoll_timeout_from_now.count());</div>
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span>  }</div>
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span> </div>
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span>  array&lt;Epoll_event, 2&gt; evs; <span class="comment">// Only one possible event (we choose 1 of 2 event sets).</span></div>
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span>  <span class="keyword">const</span> <span class="keyword">auto</span> epoll_result</div>
<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span>    = epoll_wait((snd_else_rcv ? <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">m_epoll_hndl_snd</a> : <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">m_epoll_hndl_rcv</a>)</div>
<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span>                   .m_native_handle,</div>
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span>                 evs.begin(), 1, epoll_timeout_from_now_ms);</div>
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span>  <span class="keywordflow">if</span> (epoll_result == -1)</div>
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span>  {</div>
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: epoll_wait() yielded error.  Details follow.&quot;</span>);</div>
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span> </div>
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span>    <span class="keyword">const</span> <span class="keyword">auto</span>&amp; sys_err_code = *err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span>    FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span>  }</div>
<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span> </div>
<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span>  assert(epoll_result &lt;= 2);</div>
<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span>  <span class="keywordflow">if</span> ((epoll_result == 2) <span class="comment">// Max of 2 events; if interrupted then as promised disregard it being also transmissible.</span></div>
<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span>      ||</div>
<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span>      ((epoll_result == 1) <span class="comment">// 1 event: need to check whether it&#39;s the interruptor as opposed to the actual queue.</span></div>
<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span>       &amp;&amp; (evs[0].data.fd != <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>.<a class="code hl_variable" href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">m_native_handle</a>)))</div>
<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span>  {</div>
<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span>    <span class="keywordflow">if</span> (timeout_from_now_or_none == Fine_duration::max())</div>
<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span>    {</div>
<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span>      FLOW_LOG_INFO(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Infinite-await-unstarved for &quot;</span></div>
<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span>                    <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]: interrupted.&quot;</span>);</div>
<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span>    }</div>
<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span>    {</div>
<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span>      FLOW_LOG_INFO(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-await/poll-unstarved for &quot;</span></div>
<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span>                    <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]; timeout ~[&quot;</span> &lt;&lt; epoll_timeout_from_now &lt;&lt; <span class="stringliteral">&quot;] -- &quot;</span></div>
<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span>                    <span class="stringliteral">&quot;if 0 then poll: interrupted.&quot;</span>);</div>
<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span>    }</div>
<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span>    *err_code = <a class="code hl_enumvalue" href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a291f8a813c292ccdb475c345181653ac">error::Code::S_INTERRUPTED</a>;</div>
<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span>  }</div>
<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span>  <span class="comment">// else if (epoll_result &lt;= 1): Not interrupted.</span></div>
<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span> </div>
<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> success = epoll_result == 1;</div>
<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span>  <span class="keywordflow">if</span> (timeout_from_now_or_none == Fine_duration::max())</div>
<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span>  {</div>
<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Infinite-await-unstarved for &quot;</span></div>
<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span>                   <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]: succeeded? = [&quot;</span> &lt;&lt; success &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span>  }</div>
<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span>  {</div>
<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: Blocking-await/poll-unstarved for &quot;</span></div>
<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span>                   <span class="stringliteral">&quot;snd_else_rcv [&quot;</span> &lt;&lt; snd_else_rcv &lt;&lt; <span class="stringliteral">&quot;]; timeout ~[&quot;</span> &lt;&lt; epoll_timeout_from_now &lt;&lt; <span class="stringliteral">&quot;] -- &quot;</span></div>
<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span>                   <span class="stringliteral">&quot;if 0 then poll: succeeded? = [&quot;</span> &lt;&lt; success &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span>  }</div>
<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span> </div>
<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span>  err_code-&gt;clear();</div>
<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span>  <span class="keywordflow">return</span> success;</div>
<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span>} <span class="comment">// Posix_mq_handle::wait_impl()</span></div>
<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span> </div>
<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a409b0d91e57c994341d900f840e75bb4"> 1269</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a409b0d91e57c994341d900f840e75bb4">Posix_mq_handle::is_sendable</a>(<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span>{</div>
<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(util::Fine_duration::zero(), <span class="keyword">true</span>, err_code);</div>
<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span>}</div>
<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span> </div>
<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#acf32c33a96d66436628153c74d4a8eb9"> 1274</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#acf32c33a96d66436628153c74d4a8eb9">Posix_mq_handle::wait_sendable</a>(<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span>{</div>
<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(util::Fine_duration::max(), <span class="keyword">true</span>, err_code);</div>
<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span>}</div>
<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span> </div>
<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa46ffcc8019c998313c18ed05b7c6ad3"> 1279</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#aa46ffcc8019c998313c18ed05b7c6ad3">Posix_mq_handle::timed_wait_sendable</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> timeout_from_now, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span>{</div>
<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(timeout_from_now, <span class="keyword">true</span>, err_code);</div>
<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span>}</div>
<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span> </div>
<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a399bb25dbcfa06437b2f50abcc1500d1"> 1284</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a399bb25dbcfa06437b2f50abcc1500d1">Posix_mq_handle::is_receivable</a>(<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span>{</div>
<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(util::Fine_duration::zero(), <span class="keyword">false</span>, err_code);</div>
<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span>}</div>
<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span> </div>
<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0f93df71d0c476e17b32ca4d6bf82b9b"> 1289</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a0f93df71d0c476e17b32ca4d6bf82b9b">Posix_mq_handle::wait_receivable</a>(<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span>{</div>
<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(util::Fine_duration::max(), <span class="keyword">false</span>, err_code);</div>
<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span>}</div>
<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span> </div>
<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64079f1c9315af2e75e808b6ae5312e5"> 1294</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64079f1c9315af2e75e808b6ae5312e5">Posix_mq_handle::timed_wait_receivable</a>(<a class="code hl_typedef" href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">util::Fine_duration</a> timeout_from_now, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span>{</div>
<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">wait_impl</a>(timeout_from_now, <span class="keyword">false</span>, err_code);</div>
<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span>}</div>
<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span> </div>
<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a62bc5410c9928099dff46ba021acb879"> 1299</a></span><a class="code hl_struct" href="structipc_1_1util_1_1Native__handle.html">Native_handle</a> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a62bc5410c9928099dff46ba021acb879">Posix_mq_handle::native_handle</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span><span class="keyword"></span>{</div>
<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">m_mq</a>;</div>
<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span>}</div>
<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span> </div>
<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a658271ad982e3e0af4c3666b947019cc"> 1304</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a658271ad982e3e0af4c3666b947019cc">Posix_mq_handle::remove_persistent</a>(flow::log::Logger* logger_ptr, <span class="comment">// Static.</span></div>
<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span>                                        <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; absolute_name, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span>{</div>
<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span>  using ::mq_unlink;</div>
<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span> </div>
<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span>  <span class="keywordflow">if</span> (flow::error::exec_void_and_throw_on_error</div>
<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span>        ([&amp;](<a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* actual_err_code)</div>
<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span>           { <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a658271ad982e3e0af4c3666b947019cc">remove_persistent</a>(logger_ptr, <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>, actual_err_code); },</div>
<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span>         err_code, <span class="stringliteral">&quot;Posix_mq_handle::remove_persistent()&quot;</span>))</div>
<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span>  {</div>
<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span>  }</div>
<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span> </div>
<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span>  FLOW_LOG_SET_CONTEXT(logger_ptr, Log_component::S_TRANSPORT);</div>
<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span> </div>
<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Posix_mq @ Shared_name[&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a> &lt;&lt; <span class="stringliteral">&quot;]: Removing persistent MQ if possible.&quot;</span>);</div>
<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span>  <span class="keywordflow">if</span> (mq_unlink(shared_name_to_mq_name(<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>).c_str()) == 0)</div>
<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span>  {</div>
<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span>  }</div>
<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span> </div>
<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span>  FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq @ Shared_name[&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a> &lt;&lt; <span class="stringliteral">&quot;]: While removing persistent MQ:&quot;</span></div>
<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span>                   <span class="stringliteral">&quot;mq_unlink() yielded error.  Details follow.&quot;</span>);</div>
<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; sys_err_code = *err_code = <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category());</div>
<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span>  FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span>} <span class="comment">// Posix_mq_handle::remove_persistent()</span></div>
<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span> </div>
<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825"> 1335</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">Posix_mq_handle::handle_mq_api_result</a>(<span class="keywordtype">int</span> result, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a> context)<span class="keyword"> const</span></div>
<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="keyword"></span>{</div>
<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span>  <span class="keyword">using </span>boost::system::system_category;</div>
<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span> </div>
<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span>  <span class="keywordflow">if</span> (result == 0)</div>
<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span>  {</div>
<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span>    err_code-&gt;clear();</div>
<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span>  }</div>
<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span> </div>
<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span>  FLOW_LOG_WARNING(<span class="stringliteral">&quot;Posix_mq_handle [&quot;</span> &lt;&lt; *<span class="keyword">this</span> &lt;&lt; <span class="stringliteral">&quot;]: mq_*() yielded error; context = [&quot;</span> &lt;&lt; context &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span>                   <span class="stringliteral">&quot;Details follow.&quot;</span>);</div>
<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; sys_err_code = *err_code</div>
<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span>    = (errno == EMSGSIZE)</div>
<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span>        ? <a class="code hl_enumvalue" href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a9ee20939f859e44681c24f6d153cc36b">error::Code::S_MQ_MESSAGE_SIZE_OVER_OR_UNDERFLOW</a> <span class="comment">// By contract must emit this specific code for this.</span></div>
<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span>        : <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>(errno, system_category()); <span class="comment">// Otherwise whatever it was.</span></div>
<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span>  FLOW_ERROR_SYS_ERROR_LOG_WARNING();</div>
<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span> </div>
<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span>} <span class="comment">// Posix_mq_handle::handle_mq_api_result()</span></div>
<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span> </div>
<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125"> 1357</a></span><span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">Posix_mq_handle::absolute_name</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span><span class="keyword"></span>{</div>
<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6fae02d734897a9149a7b271a146f41">m_absolute_name</a>;</div>
<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span>}</div>
<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span> </div>
<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Posix__mq__handle.html#a8fb9256b66ad3dfdf742de66223466d7"> 1362</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Posix__mq__handle.html">Posix_mq_handle</a>&amp; val)</div>
<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span>{</div>
<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span>  os &lt;&lt; <span class="charliteral">&#39;@&#39;</span> &lt;&lt; &amp;val &lt;&lt; <span class="stringliteral">&quot;: sh_name[&quot;</span> &lt;&lt; val.<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">absolute_name</a>() &lt;&lt; <span class="stringliteral">&quot;] native_handle[&quot;</span>;</div>
<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span>  <span class="keyword">const</span> <span class="keyword">auto</span> native_handle = val.<a class="code hl_function" href="classipc_1_1transport_1_1Posix__mq__handle.html#a62bc5410c9928099dff46ba021acb879">native_handle</a>();</div>
<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span>  <span class="keywordflow">if</span> (native_handle.null())</div>
<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span>  {</div>
<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span>    <span class="keywordflow">return</span> os &lt;&lt; <span class="stringliteral">&quot;null]&quot;</span>;</div>
<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span>  }</div>
<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span>  <span class="keywordflow">return</span> os &lt;&lt; native_handle &lt;&lt; <span class="charliteral">&#39;]&#39;</span>;</div>
<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span>}</div>
<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span> </div>
<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span><span class="keyword">namespace</span></div>
<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span>{</div>
<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span> </div>
<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span>std::string shared_name_to_mq_name(<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1util_1_1Shared__name.html">Shared_name</a>&amp; name)</div>
<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span>{</div>
<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span>  <span class="comment">// Pre-pend slash.  See `man mq_overview`.</span></div>
<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span>  std::string mq_name(<span class="stringliteral">&quot;/&quot;</span>);</div>
<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span>  <span class="keywordflow">return</span> mq_name += name.<a class="code hl_function" href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">str</a>();</div>
<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span>}</div>
<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span> </div>
<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span>} <span class="comment">// namespace (anon)</span></div>
<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span> </div>
<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span>} <span class="comment">// namespace ipc::transport</span></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html">ipc::transport::Posix_mq_handle</a></div><div class="ttdoc">Implements the Persistent_mq_handle concept by wrapping the POSIX message queue API (see man mq_overv...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00061">posix_mq_handle.hpp:63</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a01d842eb304fff361d72a090113ffc9f"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a01d842eb304fff361d72a090113ffc9f">ipc::transport::Posix_mq_handle::allow_sends</a></div><div class="ttdeci">bool allow_sends()</div><div class="ttdoc">Implements Persistent_mq_handle API: Turn off preemptive/concurrent interruption of blocking-sends an...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01163">posix_mq_handle.cpp:1163</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a02262faa0f53b5518db359b4e5968b47"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a02262faa0f53b5518db359b4e5968b47">ipc::transport::Posix_mq_handle::interrupt_receives</a></div><div class="ttdeci">bool interrupt_receives()</div><div class="ttdoc">Implements Persistent_mq_handle API: Turn on preemptive/concurrent interruption of blocking-receives ...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01168">posix_mq_handle.cpp:1168</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a0afe8a636902116223b4f33f081119df"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a0afe8a636902116223b4f33f081119df">ipc::transport::Posix_mq_handle::interrupt_sends</a></div><div class="ttdeci">bool interrupt_sends()</div><div class="ttdoc">Implements Persistent_mq_handle API: Turn on preemptive/concurrent interruption of blocking-sends and...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01158">posix_mq_handle.cpp:1158</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a0cf6cf0cd88b34cfd7dd93d66e383f95"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a0cf6cf0cd88b34cfd7dd93d66e383f95">ipc::transport::Posix_mq_handle::Pipe_reader</a></div><div class="ttdeci">util::Pipe_reader Pipe_reader</div><div class="ttdoc">Short-hand for anonymous pipe read end.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00509">posix_mq_handle.hpp:509</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a0f93df71d0c476e17b32ca4d6bf82b9b"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a0f93df71d0c476e17b32ca4d6bf82b9b">ipc::transport::Posix_mq_handle::wait_receivable</a></div><div class="ttdeci">void wait_receivable(Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like receive() but without the actual popping of a message.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01289">posix_mq_handle.cpp:1289</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a1ba246862d7484019476e9b60426833e"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a1ba246862d7484019476e9b60426833e">ipc::transport::Posix_mq_handle::S_RESOURCE_TYPE_ID</a></div><div class="ttdeci">static const Shared_name S_RESOURCE_TYPE_ID</div><div class="ttdoc">Implements concept API.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00068">posix_mq_handle.hpp:68</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a244ee5da96550553edca346d77c2a825"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a244ee5da96550553edca346d77c2a825">ipc::transport::Posix_mq_handle::handle_mq_api_result</a></div><div class="ttdeci">bool handle_mq_api_result(int result, Error_code *err_code, util::String_view context) const</div><div class="ttdoc">Helper that handles the result of an mq_*() call by logging WARNING(s) on error; setting *err_code on...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01335">posix_mq_handle.cpp:1335</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a28e4beb79afeac4832e6b0e1118148e9"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a28e4beb79afeac4832e6b0e1118148e9">ipc::transport::Posix_mq_handle::m_interrupt_detector_snd</a></div><div class="ttdeci">Pipe_reader m_interrupt_detector_snd</div><div class="ttdoc">A byte is read from this end by allow_sends() to make it not-readable for the poll-wait in wait_impl(...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00670">posix_mq_handle.hpp:670</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a339b2a92eb51f445752b798e17560bd4"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a339b2a92eb51f445752b798e17560bd4">ipc::transport::Posix_mq_handle::m_epoll_hndl_snd</a></div><div class="ttdeci">Native_handle m_epoll_hndl_snd</div><div class="ttdoc">epoll_*() handle (.null() if and only if m_mq is null) that is level-triggered to be active (with onl...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00637">posix_mq_handle.hpp:637</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a399bb25dbcfa06437b2f50abcc1500d1"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a399bb25dbcfa06437b2f50abcc1500d1">ipc::transport::Posix_mq_handle::is_receivable</a></div><div class="ttdeci">bool is_receivable(Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like try_receive() but without the actual popping of a message.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01284">posix_mq_handle.cpp:1284</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a4041e66104bf38ddc9dce34d11ccd405"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a4041e66104bf38ddc9dce34d11ccd405">ipc::transport::Posix_mq_handle::allow_receives</a></div><div class="ttdeci">bool allow_receives()</div><div class="ttdoc">Implements Persistent_mq_handle API: Turn off preemptive/concurrent interruption of blocking-receives...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01173">posix_mq_handle.cpp:1173</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a409b0d91e57c994341d900f840e75bb4"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a409b0d91e57c994341d900f840e75bb4">ipc::transport::Posix_mq_handle::is_sendable</a></div><div class="ttdeci">bool is_sendable(Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like try_send() but without the actual pushing of a message.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01269">posix_mq_handle.cpp:1269</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a412e7c922909eeb5707bb0abe6e27a76"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a412e7c922909eeb5707bb0abe6e27a76">ipc::transport::Posix_mq_handle::max_msg_size</a></div><div class="ttdeci">size_t max_msg_size() const</div><div class="ttdoc">Implements Persistent_mq_handle API: Returns the max message size of the underlying queue.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00616">posix_mq_handle.cpp:616</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a41b284b4476d7b51feceb57f4d0f6ddc"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a41b284b4476d7b51feceb57f4d0f6ddc">ipc::transport::Posix_mq_handle::m_interrupt_detector_rcv</a></div><div class="ttdeci">Pipe_reader m_interrupt_detector_rcv</div><div class="ttdoc">Other-direction counterpart to m_interrupt_detector_snd.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00676">posix_mq_handle.hpp:676</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a47378b13e9dce85a1e1021896c98c3cd"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a47378b13e9dce85a1e1021896c98c3cd">ipc::transport::Posix_mq_handle::epoll_setup</a></div><div class="ttdeci">Error_code epoll_setup()</div><div class="ttdoc">Ctor helper that sets up m_epoll_hndl_snd and m_epoll_hndl_rcv.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00404">posix_mq_handle.cpp:404</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a4bf3bfa8192e7d73e52054c63919187a"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a4bf3bfa8192e7d73e52054c63919187a">ipc::transport::Posix_mq_handle::Pipe_writer</a></div><div class="ttdeci">util::Pipe_writer Pipe_writer</div><div class="ttdoc">Short-hand for anonymous pipe write end.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00506">posix_mq_handle.hpp:506</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a514dbdda12ec70ea1ff65abfa6237ce2"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a514dbdda12ec70ea1ff65abfa6237ce2">ipc::transport::Posix_mq_handle::max_n_msgs</a></div><div class="ttdeci">size_t max_n_msgs() const</div><div class="ttdoc">Implements Persistent_mq_handle API: Returns the max message count of the underlying queue.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00641">posix_mq_handle.cpp:641</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a5787b3fe1eb2a7f5f6abda8b9536529b"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a5787b3fe1eb2a7f5f6abda8b9536529b">ipc::transport::Posix_mq_handle::try_send</a></div><div class="ttdeci">bool try_send(const util::Blob_const &amp;blob, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Non-blocking send: pushes copy of message to queue and returns t...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00678">posix_mq_handle.cpp:678</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a5b206bcb3928bac2afb08daa0bc699fc"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a5b206bcb3928bac2afb08daa0bc699fc">ipc::transport::Posix_mq_handle::m_interrupter_rcv</a></div><div class="ttdeci">Pipe_writer m_interrupter_rcv</div><div class="ttdoc">Other-direction counterpart to m_interrupter_snd.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00673">posix_mq_handle.hpp:673</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a62bc5410c9928099dff46ba021acb879"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a62bc5410c9928099dff46ba021acb879">ipc::transport::Posix_mq_handle::native_handle</a></div><div class="ttdeci">Native_handle native_handle() const</div><div class="ttdoc">Implements Persistent_mq_handle API: Returns the stored native MQ handle; null if not open.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01299">posix_mq_handle.cpp:1299</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a64079f1c9315af2e75e808b6ae5312e5"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a64079f1c9315af2e75e808b6ae5312e5">ipc::transport::Posix_mq_handle::timed_wait_receivable</a></div><div class="ttdeci">bool timed_wait_receivable(util::Fine_duration timeout_from_now, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like timed_receive() but without the actual popping of a message...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01294">posix_mq_handle.cpp:1294</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a64e44dd9a0e2ba1f870a231ffcf02fb9"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a64e44dd9a0e2ba1f870a231ffcf02fb9">ipc::transport::Posix_mq_handle::wait_impl</a></div><div class="ttdeci">bool wait_impl(util::Fine_duration timeout_from_now_or_none, bool snd_else_rcv, Error_code *err_code)</div><div class="ttdoc">Impl body for *_sendable() and *_receivable().</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01178">posix_mq_handle.cpp:1178</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a65015c97813a6609da035fe86d1a36c0"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a65015c97813a6609da035fe86d1a36c0">ipc::transport::Posix_mq_handle::swap</a></div><div class="ttdeci">friend void swap(Posix_mq_handle &amp;val1, Posix_mq_handle &amp;val2)</div><div class="ttdoc">Implements Persistent_mq_handle related concept: Swaps two objects.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00545">posix_mq_handle.cpp:545</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a658271ad982e3e0af4c3666b947019cc"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a658271ad982e3e0af4c3666b947019cc">ipc::transport::Posix_mq_handle::remove_persistent</a></div><div class="ttdeci">static void remove_persistent(flow::log::Logger *logger_ptr, const Shared_name &amp;name, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Removes the named persistent MQ.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01304">posix_mq_handle.cpp:1304</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a65f35bfe249b13dc3bc0442d10a55a0f"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a65f35bfe249b13dc3bc0442d10a55a0f">ipc::transport::Posix_mq_handle::receive</a></div><div class="ttdeci">void receive(util::Blob_mutable *blob, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Blocking receive: pops copy of message from queue into buffer; i...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00926">posix_mq_handle.cpp:926</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a6e9b11537c7c83f43728aca7af348a42"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a6e9b11537c7c83f43728aca7af348a42">ipc::transport::Posix_mq_handle::send</a></div><div class="ttdeci">void send(const util::Blob_const &amp;blob, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Blocking send: pushes copy of message to queue; if queue is full...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00728">posix_mq_handle.cpp:728</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a6f5c4dfbc0427f2a8456fb589e5f63d3"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a6f5c4dfbc0427f2a8456fb589e5f63d3">ipc::transport::Posix_mq_handle::Posix_mq_handle</a></div><div class="ttdeci">Posix_mq_handle()</div><div class="ttdoc">Implements Persistent_mq_handle API: Construct null handle.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00048">posix_mq_handle.cpp:48</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a75eac3aa00f897013338aebbfa00b7e2"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a75eac3aa00f897013338aebbfa00b7e2">ipc::transport::Posix_mq_handle::m_interrupting_snd</a></div><div class="ttdeci">bool m_interrupting_snd</div><div class="ttdoc">Starting at false, this is made true via interrupt_sends(), and back by allow_sends(); acts as a guar...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00651">posix_mq_handle.hpp:651</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a7d62af06a8cea2a821908384ee098125"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a7d62af06a8cea2a821908384ee098125">ipc::transport::Posix_mq_handle::absolute_name</a></div><div class="ttdeci">const Shared_name &amp; absolute_name() const</div><div class="ttdoc">Implements Persistent_mq_handle API: Returns name equal to absolute_name passed to ctor.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01357">posix_mq_handle.cpp:1357</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a859113a2c5248287efc55115654ec0ac"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a859113a2c5248287efc55115654ec0ac">ipc::transport::Posix_mq_handle::m_epoll_hndl_rcv</a></div><div class="ttdeci">Native_handle m_epoll_hndl_rcv</div><div class="ttdoc">epoll_*() handle (.null() if and only if m_mq is null) that is level-triggered to be active (with onl...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00644">posix_mq_handle.hpp:644</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a88e37b4835abbc491df222aebe31f46f"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a88e37b4835abbc491df222aebe31f46f">ipc::transport::Posix_mq_handle::allow_impl</a></div><div class="ttdeci">bool allow_impl()</div><div class="ttdoc">Impl body for allow_*().</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01118">posix_mq_handle.cpp:1118</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_a98884af2e485268f92b3f5f7c1069291"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#a98884af2e485268f92b3f5f7c1069291">ipc::transport::Posix_mq_handle::interrupt_impl</a></div><div class="ttdeci">bool interrupt_impl()</div><div class="ttdoc">Impl body for interrupt_*().</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01079">posix_mq_handle.cpp:1079</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_aa46ffcc8019c998313c18ed05b7c6ad3"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#aa46ffcc8019c998313c18ed05b7c6ad3">ipc::transport::Posix_mq_handle::timed_wait_sendable</a></div><div class="ttdeci">bool timed_wait_sendable(util::Fine_duration timeout_from_now, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like timed_send() but without the actual pushing of a message.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01279">posix_mq_handle.cpp:1279</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_aa853452d0d0aeeaf61461cc8a48b5c09"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#aa853452d0d0aeeaf61461cc8a48b5c09">ipc::transport::Posix_mq_handle::timed_receive</a></div><div class="ttdeci">bool timed_receive(util::Blob_mutable *blob, util::Fine_duration timeout_from_now, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Blocking timed receive: pops copy of message from queue into buf...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00994">posix_mq_handle.cpp:994</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_aa8e2e4c19715424d35b4572a29de126b"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#aa8e2e4c19715424d35b4572a29de126b">ipc::transport::Posix_mq_handle::~Posix_mq_handle</a></div><div class="ttdeci">~Posix_mq_handle()</div><div class="ttdoc">Implements Persistent_mq_handle API: Destroys this handle (or no-op if no handle was successfully con...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00501">posix_mq_handle.cpp:501</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ab68150c87931f6eb32d0908049e4dac6"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ab68150c87931f6eb32d0908049e4dac6">ipc::transport::Posix_mq_handle::set_non_blocking</a></div><div class="ttdeci">bool set_non_blocking(bool nb, Error_code *err_code)</div><div class="ttdoc">Sets m_mq to blocking or non-blocking and returns true on success and clears *err_code; otherwise ret...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00660">posix_mq_handle.cpp:660</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ab6fae02d734897a9149a7b271a146f41"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ab6fae02d734897a9149a7b271a146f41">ipc::transport::Posix_mq_handle::m_absolute_name</a></div><div class="ttdeci">Shared_name m_absolute_name</div><div class="ttdoc">See absolute_name().</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00630">posix_mq_handle.hpp:630</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_abe2b3968c60945224ddfce119bcae018"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#abe2b3968c60945224ddfce119bcae018">ipc::transport::Posix_mq_handle::timed_send</a></div><div class="ttdeci">bool timed_send(const util::Blob_const &amp;blob, util::Fine_duration timeout_from_now, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Blocking timed send: pushes copy of message to queue; if queue i...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00796">posix_mq_handle.cpp:796</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_abe9a423ceda292d5b01b54039102170b"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#abe9a423ceda292d5b01b54039102170b">ipc::transport::Posix_mq_handle::try_receive</a></div><div class="ttdeci">bool try_receive(util::Blob_mutable *blob, Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Non-blocking receive: pops copy of message from queue into buffe...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00880">posix_mq_handle.cpp:880</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ac2cf0213ceaa0a8c621ee2c02c6fbec6"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ac2cf0213ceaa0a8c621ee2c02c6fbec6">ipc::transport::Posix_mq_handle::pipe_setup</a></div><div class="ttdeci">Error_code pipe_setup()</div><div class="ttdoc">Ctor helper that sets up m_interrupt* pipe items.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00377">posix_mq_handle.cpp:377</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_acf32c33a96d66436628153c74d4a8eb9"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#acf32c33a96d66436628153c74d4a8eb9">ipc::transport::Posix_mq_handle::wait_sendable</a></div><div class="ttdeci">void wait_sendable(Error_code *err_code=0)</div><div class="ttdoc">Implements Persistent_mq_handle API: Like send() but without the actual pushing of a message.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l01274">posix_mq_handle.cpp:1274</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ae1ec26a4ea667cfc04d4de889b14ed68"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ae1ec26a4ea667cfc04d4de889b14ed68">ipc::transport::Posix_mq_handle::m_interrupting_rcv</a></div><div class="ttdeci">bool m_interrupting_rcv</div><div class="ttdoc">Other-direction counterpart to m_interrupting_snd.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00654">posix_mq_handle.hpp:654</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ae77e18be8f9e7de1fba382572ce18c99"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ae77e18be8f9e7de1fba382572ce18c99">ipc::transport::Posix_mq_handle::m_interrupter_snd</a></div><div class="ttdeci">Pipe_writer m_interrupter_snd</div><div class="ttdoc">A byte is written to this end by interrupt_sends() to make it readable for the poll-wait in wait_impl...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00663">posix_mq_handle.hpp:663</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_ae9465f6fe5c2d36bcbe747fe1bf8d995"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#ae9465f6fe5c2d36bcbe747fe1bf8d995">ipc::transport::Posix_mq_handle::m_mq</a></div><div class="ttdeci">Native_handle m_mq</div><div class="ttdoc">Underlying MQ handle.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00627">posix_mq_handle.hpp:627</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_aeda588bb49f6089bb3c2f7043191006c"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#aeda588bb49f6089bb3c2f7043191006c">ipc::transport::Posix_mq_handle::m_nb_task_engine</a></div><div class="ttdeci">flow::util::Task_engine m_nb_task_engine</div><div class="ttdoc">Never used for .run() or .async() – just so we can construct Pipe_reader, Pipe_writer.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8hpp_source.html#l00657">posix_mq_handle.hpp:657</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Posix__mq__handle_html_aeec1f1528e8d51e85f0cbb784ea23e4b"><div class="ttname"><a href="classipc_1_1transport_1_1Posix__mq__handle.html#aeec1f1528e8d51e85f0cbb784ea23e4b">ipc::transport::Posix_mq_handle::operator=</a></div><div class="ttdeci">Posix_mq_handle &amp; operator=(Posix_mq_handle &amp;&amp;src)</div><div class="ttdoc">Implements Persistent_mq_handle API: Replaces handle with the source handle while making the latter i...</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00525">posix_mq_handle.cpp:525</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html">ipc::util::Shared_name</a></div><div class="ttdoc">String-wrapping abstraction representing a name uniquely distinguishing a kernel-persistent entity fr...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00241">shared_name.hpp:242</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a48f20b7b54490aa10dc64081d34c55b2"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a48f20b7b54490aa10dc64081d34c55b2">ipc::util::Shared_name::ct</a></div><div class="ttdeci">static Shared_name ct(const Source &amp;src)</div><div class="ttdoc">Copy-constructs from a char-sequence container (including string, util::String_view,...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8hpp_source.html#l00674">shared_name.hpp:674</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_a8328c9a6bc2739145087515ee8e677d8"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#a8328c9a6bc2739145087515ee8e677d8">ipc::util::Shared_name::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Makes it so empty() == true.</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8cpp_source.html#l00170">shared_name.cpp:170</a></div></div>
<div class="ttc" id="aclassipc_1_1util_1_1Shared__name_html_ae89e1e061f87ffe0288514e254837595"><div class="ttname"><a href="classipc_1_1util_1_1Shared__name.html#ae89e1e061f87ffe0288514e254837595">ipc::util::Shared_name::str</a></div><div class="ttdeci">const std::string &amp; str() const</div><div class="ttdoc">Returns (sans copying) ref to immutable entire wrapped name string, suitable to pass into sys calls w...</div><div class="ttdef"><b>Definition:</b> <a href="shared__name_8cpp_source.html#l00140">shared_name.cpp:140</a></div></div>
<div class="ttc" id="aipc__core_2src_2ipc_2transport_2error_8hpp_html"><div class="ttname"><a href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">error.hpp</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1error_html_adfef15ef4e76cc55d652fbd9c2797297a291f8a813c292ccdb475c345181653ac"><div class="ttname"><a href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a291f8a813c292ccdb475c345181653ac">ipc::transport::error::Code::S_INTERRUPTED</a></div><div class="ttdeci">@ S_INTERRUPTED</div><div class="ttdoc">A blocking operation was intentionally interrupted or preemptively canceled.</div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1error_html_adfef15ef4e76cc55d652fbd9c2797297a9ee20939f859e44681c24f6d153cc36b"><div class="ttname"><a href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a9ee20939f859e44681c24f6d153cc36b">ipc::transport::error::Code::S_MQ_MESSAGE_SIZE_OVER_OR_UNDERFLOW</a></div><div class="ttdeci">@ S_MQ_MESSAGE_SIZE_OVER_OR_UNDERFLOW</div><div class="ttdoc">Low-level message queue send-op buffer overflow (&gt; max size) or receive-op buffer underflow (&lt; max si...</div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html"><div class="ttname"><a href="namespaceipc_1_1transport.html">ipc::transport</a></div><div class="ttdoc">Flow-IPC module providing transmission of structured messages and/or low-level blobs (and more) betwe...</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket_8cpp_source.html#l00031">asio_local_stream_socket.cpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a33de1c256addb3964b839dc2dd407d24"><div class="ttname"><a href="namespaceipc_1_1transport.html#a33de1c256addb3964b839dc2dd407d24">ipc::transport::Shared_name</a></div><div class="ttdeci">util::Shared_name Shared_name</div><div class="ttdoc">Convenience alias for the commonly used type util::Shared_name.</div><div class="ttdef"><b>Definition:</b> <a href="transport__fwd_8hpp_source.html#l00084">transport_fwd.hpp:84</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a61c80019823537694f925275dccb4f3f"><div class="ttname"><a href="namespaceipc_1_1transport.html#a61c80019823537694f925275dccb4f3f">ipc::transport::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Bipc_mq_handle &amp;val)</div><div class="ttdoc">Prints string representation of the given Bipc_mq_handle to the given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="bipc__mq__handle_8cpp_source.html#l01028">bipc_mq_handle.cpp:1028</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a65015c97813a6609da035fe86d1a36c0"><div class="ttname"><a href="namespaceipc_1_1transport.html#a65015c97813a6609da035fe86d1a36c0">ipc::transport::swap</a></div><div class="ttdeci">void swap(Posix_mq_handle &amp;val1, Posix_mq_handle &amp;val2)</div><div class="ttdoc">Implements Persistent_mq_handle related concept: Swaps two objects.</div><div class="ttdef"><b>Definition:</b> <a href="posix__mq__handle_8cpp_source.html#l00545">posix_mq_handle.cpp:545</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_a7ee4551983d9df16ec16a3139bac50e8"><div class="ttname"><a href="namespaceipc_1_1transport.html#a7ee4551983d9df16ec16a3139bac50e8">ipc::transport::Native_handle</a></div><div class="ttdeci">util::Native_handle Native_handle</div><div class="ttdoc">Convenience alias for the commonly used type util::Native_handle.</div><div class="ttdef"><b>Definition:</b> <a href="transport__fwd_8hpp_source.html#l00081">transport_fwd.hpp:81</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html_af0610dff5efd418a8ff393f0ad9dd5c2"><div class="ttname"><a href="namespaceipc_1_1transport.html#af0610dff5efd418a8ff393f0ad9dd5c2">ipc::transport::swap</a></div><div class="ttdeci">void swap(Bipc_mq_handle &amp;val1, Bipc_mq_handle &amp;val2)</div><div class="ttdoc">Implements Persistent_mq_handle related concept: Swaps two objects.</div><div class="ttdef"><b>Definition:</b> <a href="bipc__mq__handle_8cpp_source.html#l00130">bipc_mq_handle.cpp:130</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a1b398ae730d1e6040687cb2397115152"><div class="ttname"><a href="namespaceipc_1_1util.html#a1b398ae730d1e6040687cb2397115152">ipc::util::Permissions</a></div><div class="ttdeci">bipc::permissions Permissions</div><div class="ttdoc">Short-hand for Unix (POSIX) permissions class.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00161">util_fwd.hpp:161</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a2bb38cee29dacbe56de5182221b45941"><div class="ttname"><a href="namespaceipc_1_1util.html#a2bb38cee29dacbe56de5182221b45941">ipc::util::blob_data</a></div><div class="ttdeci">const uint8_t * blob_data(const Blob_const &amp;blob)</div><div class="ttdoc">Syntactic-sugary helper that returns pointer to first byte in an immutable buffer,...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00158">util.cpp:158</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a3e03491b5b2b5fac26551a220946d6e5"><div class="ttname"><a href="namespaceipc_1_1util.html#a3e03491b5b2b5fac26551a220946d6e5">ipc::util::Open_only</a></div><div class="ttdeci">bipc::open_only_t Open_only</div><div class="ttdoc">Tag type indicating an ideally-atomic open-if-exists-else-fail operation.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00155">util_fwd.hpp:155</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a5429c6225cc9a271ad8c0041d99c236b"><div class="ttname"><a href="namespaceipc_1_1util.html#a5429c6225cc9a271ad8c0041d99c236b">ipc::util::pipe_produce</a></div><div class="ttdeci">void pipe_produce(flow::log::Logger *logger_ptr, Pipe_writer *pipe)</div><div class="ttdoc">Writes a byte to the given pipe writer.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2detail_2util_8cpp_source.html#l00067">util.cpp:67</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a5664539b3d75d6d10cdfebf6eac5382d"><div class="ttname"><a href="namespaceipc_1_1util.html#a5664539b3d75d6d10cdfebf6eac5382d">ipc::util::OPEN_OR_CREATE</a></div><div class="ttdeci">const Open_or_create OPEN_OR_CREATE</div><div class="ttdoc">Tag value indicating an open-if-exists-else-create operation.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00030">util.cpp:30</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a6cb62ae434900f3a8915b33ec5d61a96"><div class="ttname"><a href="namespaceipc_1_1util.html#a6cb62ae434900f3a8915b33ec5d61a96">ipc::util::Blob_mutable</a></div><div class="ttdeci">boost::asio::mutable_buffer Blob_mutable</div><div class="ttdoc">Short-hand for an mutable blob somewhere in memory, stored as exactly a void* and a size_t.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00140">util_fwd.hpp:140</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a814272e555c0592b0caf92b7bc3d64b3"><div class="ttname"><a href="namespaceipc_1_1util.html#a814272e555c0592b0caf92b7bc3d64b3">ipc::util::pipe_consume</a></div><div class="ttdeci">void pipe_consume(flow::log::Logger *logger_ptr, Pipe_reader *pipe)</div><div class="ttdoc">Reads a byte via the given pipe reader.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2detail_2util_8cpp_source.html#l00096">util.cpp:96</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a844d5ca9c17b672644fc8d9dbe758db0"><div class="ttname"><a href="namespaceipc_1_1util.html#a844d5ca9c17b672644fc8d9dbe758db0">ipc::util::Pipe_writer</a></div><div class="ttdeci">boost::asio::writable_pipe Pipe_writer</div><div class="ttdoc">Short-hand for anonymous pipe write end.</div><div class="ttdef"><b>Definition:</b> <a href="detail_2util__fwd_8hpp_source.html#l00032">util_fwd.hpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a9571de958538d7a4a8649bbfecfac0b9"><div class="ttname"><a href="namespaceipc_1_1util.html#a9571de958538d7a4a8649bbfecfac0b9">ipc::util::Open_or_create</a></div><div class="ttdeci">bipc::open_or_create_t Open_or_create</div><div class="ttdoc">Tag type indicating an atomic open-if-exists-else-create operation.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00152">util_fwd.hpp:152</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_a9d84c2bab504e6de32b20c77ca9723a2"><div class="ttname"><a href="namespaceipc_1_1util.html#a9d84c2bab504e6de32b20c77ca9723a2">ipc::util::Create_only</a></div><div class="ttdeci">bipc::create_only_t Create_only</div><div class="ttdoc">Tag type indicating a create-unless-exists-else-fail operation.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00158">util_fwd.hpp:158</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_aa3808edfc4d59bce4b9800d6a60026d3"><div class="ttname"><a href="namespaceipc_1_1util.html#aa3808edfc4d59bce4b9800d6a60026d3">ipc::util::Fine_time_pt</a></div><div class="ttdeci">flow::Fine_time_pt Fine_time_pt</div><div class="ttdoc">Short-hand for Flow's Fine_time_pt.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00119">util_fwd.hpp:119</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_aaf368acf8243bb25de3eef4e836c15de"><div class="ttname"><a href="namespaceipc_1_1util.html#aaf368acf8243bb25de3eef4e836c15de">ipc::util::Pipe_reader</a></div><div class="ttdeci">boost::asio::readable_pipe Pipe_reader</div><div class="ttdoc">Short-hand for anonymous pipe read end.</div><div class="ttdef"><b>Definition:</b> <a href="detail_2util__fwd_8hpp_source.html#l00035">util_fwd.hpp:35</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_abbba79fcaee378f433e7ce3093e5c435"><div class="ttname"><a href="namespaceipc_1_1util.html#abbba79fcaee378f433e7ce3093e5c435">ipc::util::set_resource_permissions</a></div><div class="ttdeci">void set_resource_permissions(flow::log::Logger *logger_ptr, const fs::path &amp;path, const Permissions &amp;perms, Error_code *err_code)</div><div class="ttdoc">Utility that sets the permissions of the given resource (at the supplied file system path) to specifi...</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00046">util.cpp:46</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ac66141280c3b7295a86b65209f31cc58"><div class="ttname"><a href="namespaceipc_1_1util.html#ac66141280c3b7295a86b65209f31cc58">ipc::util::Fine_duration</a></div><div class="ttdeci">flow::Fine_duration Fine_duration</div><div class="ttdoc">Short-hand for Flow's Fine_duration.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00117">util_fwd.hpp:117</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ad1ca1cab79a35e1eb1c47037a0973cd8"><div class="ttname"><a href="namespaceipc_1_1util.html#ad1ca1cab79a35e1eb1c47037a0973cd8">ipc::util::CREATE_ONLY</a></div><div class="ttdeci">const Create_only CREATE_ONLY</div><div class="ttdoc">Tag value indicating an atomic create-unless-exists-else-fail operation.</div><div class="ttdef"><b>Definition:</b> <a href="ipc__core_2src_2ipc_2util_2util_8cpp_source.html#l00032">util.cpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae0be7edba7e30ffa3f8b742af621f2ab"><div class="ttname"><a href="namespaceipc_1_1util.html#ae0be7edba7e30ffa3f8b742af621f2ab">ipc::util::Blob_const</a></div><div class="ttdeci">boost::asio::const_buffer Blob_const</div><div class="ttdoc">Short-hand for an immutable blob somewhere in memory, stored as exactly a void const * and a size_t.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00134">util_fwd.hpp:134</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae6ac47812a90d1287c61e0b7de7bc4f5"><div class="ttname"><a href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">ipc::util::String_view</a></div><div class="ttdeci">flow::util::String_view String_view</div><div class="ttdoc">Short-hand for Flow's String_view.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00115">util_fwd.hpp:115</a></div></div>
<div class="ttc" id="anamespaceipc_html_a4ccdeed058222c635745a4dc830e99f7"><div class="ttname"><a href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">ipc::Log_component</a></div><div class="ttdeci">Log_component</div><div class="ttdoc">The flow::log::Component payload enumeration containing various log components used by Flow-IPC inter...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00322">common.hpp:323</a></div></div>
<div class="ttc" id="anamespaceipc_html_aa3192e586cc45d3e7c22463bf2760f89"><div class="ttname"><a href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">ipc::Error_code</a></div><div class="ttdeci">flow::Error_code Error_code</div><div class="ttdoc">Short-hand for flow::Error_code which is very common.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00298">common.hpp:298</a></div></div>
<div class="ttc" id="aposix__mq__handle_8hpp_html"><div class="ttname"><a href="posix__mq__handle_8hpp.html">posix_mq_handle.hpp</a></div></div>
<div class="ttc" id="astructipc_1_1util_1_1Native__handle_html"><div class="ttname"><a href="structipc_1_1util_1_1Native__handle.html">ipc::util::Native_handle</a></div><div class="ttdoc">A monolayer-thin wrapper around a native handle, a/k/a descriptor a/k/a FD.</div><div class="ttdef"><b>Definition:</b> <a href="native__handle_8hpp_source.html#l00062">native_handle.hpp:63</a></div></div>
<div class="ttc" id="astructipc_1_1util_1_1Native__handle_html_a11bd62ce0a7bef4bdfe666201c26d4dc"><div class="ttname"><a href="structipc_1_1util_1_1Native__handle.html#a11bd62ce0a7bef4bdfe666201c26d4dc">ipc::util::Native_handle::null</a></div><div class="ttdeci">bool null() const</div><div class="ttdoc">Returns true if and only if m_native_handle equals S_NULL_HANDLE.</div><div class="ttdef"><b>Definition:</b> <a href="native__handle_8cpp_source.html#l00061">native_handle.cpp:61</a></div></div>
<div class="ttc" id="astructipc_1_1util_1_1Native__handle_html_ab2f496740139c5752a25a30cf3325d86"><div class="ttname"><a href="structipc_1_1util_1_1Native__handle.html#ab2f496740139c5752a25a30cf3325d86">ipc::util::Native_handle::m_native_handle</a></div><div class="ttdeci">handle_t m_native_handle</div><div class="ttdoc">The native handle (possibly equal to S_NULL_HANDLE), the exact payload of this Native_handle.</div><div class="ttdef"><b>Definition:</b> <a href="native__handle_8hpp_source.html#l00085">native_handle.hpp:85</a></div></div>
<div class="ttc" id="atransport__fwd_8hpp_html"><div class="ttname"><a href="transport__fwd_8hpp.html">transport_fwd.hpp</a></div></div>
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